/* jquery.nicescroll
-- version 3.7.6
-- copyright 2017-07-19 InuYaksa*2017
--
*/

/* jshint expr: true */

(function (factory) {
    if (typeof define === 'function' && define.amd) {
      // AMD. Register as anonymous module.
      define(['jquery'], factory);
    } else if (typeof exports === 'object') {
      // Node/CommonJS.
      module.exports = factory(require('jquery'));
    } else {
      // Browser globals.
      factory(jQuery);
    }
  }(function (jQuery) {
  
    "use strict";
  
    // globals
    var domfocus = false,
      mousefocus = false,
      tabindexcounter = 0,
      ascrailcounter = 2000,
      globalmaxzindex = 0;
  
    var $ = jQuery,       // sandbox
      _doc = document,
      _win = window,
      $window = $(_win);
  
    var delegatevents = [];
  
    function getScriptPath() {
      var scripts = _doc.currentScript || (function () { var s = _doc.getElementsByTagName('script'); return (s.length) ? s[s.length - 1] : false; })();
      var path = scripts ? scripts.src.split('?')[0] : '';
      return (path.split('/').length > 0) ? path.split('/').slice(0, -1).join('/') + '/' : '';
    }
  
    var setAnimationFrame = _win.requestAnimationFrame || _win.webkitRequestAnimationFrame || _win.mozRequestAnimationFrame || false;
    var clearAnimationFrame = _win.cancelAnimationFrame || _win.webkitCancelAnimationFrame || _win.mozCancelAnimationFrame || false;
  
    if (!setAnimationFrame) {
      var anilasttime = 0;
      setAnimationFrame = function (callback, element) {
        var currTime = new Date().getTime();
        var timeToCall = Math.max(0, 16 - (currTime - anilasttime));
        var id = _win.setTimeout(function () { callback(currTime + timeToCall); },
          timeToCall);
        anilasttime = currTime + timeToCall;
        return id;
      };
      clearAnimationFrame = function (id) {
        _win.clearTimeout(id);
      };
    } else {
      if (!_win.cancelAnimationFrame) clearAnimationFrame = function (id) { };
    }
  
    var ClsMutationObserver = _win.MutationObserver || _win.WebKitMutationObserver || false;
  
    var now = Date.now || function () { return new Date().getTime(); };
  
    var _globaloptions = {
      zindex: "auto",
      cursoropacitymin: 0,
      cursoropacitymax: 1,
      cursorcolor: "#424242",
      cursorwidth: "6px",
      cursorborder: "1px solid #fff",
      cursorborderradius: "5px",
      scrollspeed: 40,
      mousescrollstep: 9 * 3,
      touchbehavior: false,   // deprecated
      emulatetouch: false,    // replacing touchbehavior
      hwacceleration: true,
      usetransition: true,
      boxzoom: false,
      dblclickzoom: true,
      gesturezoom: true,
      grabcursorenabled: true,
      autohidemode: true,
      background: "",
      iframeautoresize: true,
      cursorminheight: 32,
      preservenativescrolling: true,
      railoffset: false,
      railhoffset: false,
      bouncescroll: true,
      spacebarenabled: true,
      railpadding: {
        top: 0,
        right: 0,
        left: 0,
        bottom: 0
      },
      disableoutline: true,
      horizrailenabled: true,
      railalign: "right",
      railvalign: "bottom",
      enabletranslate3d: true,
      enablemousewheel: true,
      enablekeyboard: true,
      smoothscroll: true,
      sensitiverail: true,
      enablemouselockapi: true,
      //      cursormaxheight:false,
      cursorfixedheight: false,
      directionlockdeadzone: 6,
      hidecursordelay: 400,
      nativeparentscrolling: true,
      enablescrollonselection: true,
      overflowx: true,
      overflowy: true,
      cursordragspeed: 0.3,
      rtlmode: "auto",
      cursordragontouch: false,
      oneaxismousemode: "auto",
      scriptpath: getScriptPath(),
      preventmultitouchscrolling: true,
      disablemutationobserver: false,
      enableobserver: true,
      scrollbarid: false
    };
  
    var browserdetected = false;
  
    var getBrowserDetection = function () {
  
      if (browserdetected) return browserdetected;
  
      var _el = _doc.createElement('DIV'),
        _style = _el.style,
        _agent = navigator.userAgent,
        _platform = navigator.platform,
        d = {};
  
      d.haspointerlock = "pointerLockElement" in _doc || "webkitPointerLockElement" in _doc || "mozPointerLockElement" in _doc;
  
      d.isopera = ("opera" in _win); // 12-
      d.isopera12 = (d.isopera && ("getUserMedia" in navigator));
      d.isoperamini = (Object.prototype.toString.call(_win.operamini) === "[object OperaMini]");
  
      d.isie = (("all" in _doc) && ("attachEvent" in _el) && !d.isopera); //IE10-
      d.isieold = (d.isie && !("msInterpolationMode" in _style)); // IE6 and older
      d.isie7 = d.isie && !d.isieold && (!("documentMode" in _doc) || (_doc.documentMode === 7));
      d.isie8 = d.isie && ("documentMode" in _doc) && (_doc.documentMode === 8);
      d.isie9 = d.isie && ("performance" in _win) && (_doc.documentMode === 9);
      d.isie10 = d.isie && ("performance" in _win) && (_doc.documentMode === 10);
      d.isie11 = ("msRequestFullscreen" in _el) && (_doc.documentMode >= 11); // IE11+
  
      d.ismsedge = ("msCredentials" in _win);  // MS Edge 14+
  
      d.ismozilla = ("MozAppearance" in _style);
  
      d.iswebkit = !d.ismsedge && ("WebkitAppearance" in _style);
  
      d.ischrome = d.iswebkit && ("chrome" in _win);
      d.ischrome38 = (d.ischrome && ("touchAction" in _style)); // behavior changed in touch emulation    
      d.ischrome22 = (!d.ischrome38) && (d.ischrome && d.haspointerlock);
      d.ischrome26 = (!d.ischrome38) && (d.ischrome && ("transition" in _style)); // issue with transform detection (maintain prefix)
  
      d.cantouch = ("ontouchstart" in _doc.documentElement) || ("ontouchstart" in _win); // with detection for Chrome Touch Emulation    
      d.hasw3ctouch = (_win.PointerEvent || false) && ((navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0)); //IE11 pointer events, following W3C Pointer Events spec
      d.hasmstouch = (!d.hasw3ctouch) && (_win.MSPointerEvent || false); // IE10 pointer events
  
      d.ismac = /^mac$/i.test(_platform);
  
      d.isios = d.cantouch && /iphone|ipad|ipod/i.test(_platform);
      d.isios4 = d.isios && !("seal" in Object);
      d.isios7 = d.isios && ("webkitHidden" in _doc);  //iOS 7+
      d.isios8 = d.isios && ("hidden" in _doc);  //iOS 8+
      d.isios10 = d.isios && _win.Proxy;  //iOS 10+
  
      d.isandroid = (/android/i.test(_agent));
  
      d.haseventlistener = ("addEventListener" in _el);
  
      d.trstyle = false;
      d.hastransform = false;
      d.hastranslate3d = false;
      d.transitionstyle = false;
      d.hastransition = false;
      d.transitionend = false;
  
      d.trstyle = "transform";
      d.hastransform = ("transform" in _style) || (function () {
        var check = ['msTransform', 'webkitTransform', 'MozTransform', 'OTransform'];
        for (var a = 0, c = check.length; a < c; a++) {
          if (_style[check[a]] !== undefined) {
            d.trstyle = check[a];
            break;
          }
        }
        d.hastransform = (!!d.trstyle);
      })();
  
      if (d.hastransform) {
        _style[d.trstyle] = "translate3d(1px,2px,3px)";
        d.hastranslate3d = /translate3d/.test(_style[d.trstyle]);
      }
  
      d.transitionstyle = "transition";
      d.prefixstyle = '';
      d.transitionend = "transitionend";
  
      d.hastransition = ("transition" in _style) || (function () {
  
        d.transitionend = false;
        var check = ['webkitTransition', 'msTransition', 'MozTransition', 'OTransition', 'OTransition', 'KhtmlTransition'];
        var prefix = ['-webkit-', '-ms-', '-moz-', '-o-', '-o', '-khtml-'];
        var evs = ['webkitTransitionEnd', 'msTransitionEnd', 'transitionend', 'otransitionend', 'oTransitionEnd', 'KhtmlTransitionEnd'];
        for (var a = 0, c = check.length; a < c; a++) {
          if (check[a] in _style) {
            d.transitionstyle = check[a];
            d.prefixstyle = prefix[a];
            d.transitionend = evs[a];
            break;
          }
        }
        if (d.ischrome26) d.prefixstyle = prefix[1];  // always use prefix
  
        d.hastransition = (d.transitionstyle);
  
      })();
  
      function detectCursorGrab() {
        var lst = ['grab', '-webkit-grab', '-moz-grab'];
        if ((d.ischrome && !d.ischrome38) || d.isie) lst = []; // force setting for IE returns false positive and chrome cursor bug
        for (var a = 0, l = lst.length; a < l; a++) {
          var p = lst[a];
          _style.cursor = p;
          if (_style.cursor == p) return p;
        }
        return 'url(https://cdnjs.cloudflare.com/ajax/libs/slider-pro/1.3.0/css/images/openhand.cur),n-resize'; // thanks to https://cdnjs.com/ for the openhand cursor!
      }
      d.cursorgrabvalue = detectCursorGrab();
  
      d.hasmousecapture = ("setCapture" in _el);
  
      d.hasMutationObserver = (ClsMutationObserver !== false);
  
      _el = null; //memory released
  
      browserdetected = d;
  
      return d;
    };
  
    var NiceScrollClass = function (myopt, me) {
  
      var self = this;
  
      this.version = '3.7.6';
      this.name = 'nicescroll';
  
      this.me = me;
  
      var $body = $("body");
  
      var opt = this.opt = {
        doc: $body,
        win: false
      };
  
      $.extend(opt, _globaloptions);  // clone opts
  
      // Options for internal use
      opt.snapbackspeed = 80;
  
      if (myopt || false) {
        for (var a in opt) {
          if (myopt[a] !== undefined) opt[a] = myopt[a];
        }
      }
  
      if (opt.disablemutationobserver) ClsMutationObserver = false;
  
      this.doc = opt.doc;
      this.iddoc = (this.doc && this.doc[0]) ? this.doc[0].id || '' : '';
      this.ispage = /^BODY|HTML/.test((opt.win) ? opt.win[0].nodeName : this.doc[0].nodeName);
      this.haswrapper = (opt.win !== false);
      this.win = opt.win || (this.ispage ? $window : this.doc);
      this.docscroll = (this.ispage && !this.haswrapper) ? $window : this.win;
      this.body = $body;
      this.viewport = false;
  
      this.isfixed = false;
  
      this.iframe = false;
      this.isiframe = ((this.doc[0].nodeName == 'IFRAME') && (this.win[0].nodeName == 'IFRAME'));
  
      this.istextarea = (this.win[0].nodeName == 'TEXTAREA');
  
      this.forcescreen = false; //force to use screen position on events
  
      this.canshowonmouseevent = (opt.autohidemode != "scroll");
  
      // Events jump table    
      this.onmousedown = false;
      this.onmouseup = false;
      this.onmousemove = false;
      this.onmousewheel = false;
      this.onkeypress = false;
      this.ongesturezoom = false;
      this.onclick = false;
  
      // Nicescroll custom events
      this.onscrollstart = false;
      this.onscrollend = false;
      this.onscrollcancel = false;
  
      this.onzoomin = false;
      this.onzoomout = false;
  
      // Let's start!  
      this.view = false;
      this.page = false;
  
      this.scroll = {
        x: 0,
        y: 0
      };
      this.scrollratio = {
        x: 0,
        y: 0
      };
      this.cursorheight = 20;
      this.scrollvaluemax = 0;
  
      // http://dev.w3.org/csswg/css-writing-modes-3/#logical-to-physical
      // http://dev.w3.org/csswg/css-writing-modes-3/#svg-writing-mode
      if (opt.rtlmode == "auto") {
        var target = this.win[0] == _win ? this.body : this.win;
        var writingMode = target.css("writing-mode") || target.css("-webkit-writing-mode") || target.css("-ms-writing-mode") || target.css("-moz-writing-mode");
  
        if (writingMode == "horizontal-tb" || writingMode == "lr-tb" || writingMode === "") {
          this.isrtlmode = (target.css("direction") == "rtl");
          this.isvertical = false;
        } else {
          this.isrtlmode = (writingMode == "vertical-rl" || writingMode == "tb" || writingMode == "tb-rl" || writingMode == "rl-tb");
          this.isvertical = (writingMode == "vertical-rl" || writingMode == "tb" || writingMode == "tb-rl");
        }
      } else {
        this.isrtlmode = (opt.rtlmode === true);
        this.isvertical = false;
      }
      //    this.checkrtlmode = false;
  
      this.scrollrunning = false;
  
      this.scrollmom = false;
  
      this.observer = false;  // observer div changes
      this.observerremover = false;  // observer on parent for remove detection
      this.observerbody = false;  // observer on body for position change
  
      if (opt.scrollbarid !== false) {
        this.id = opt.scrollbarid;
      } else {
        do {
          this.id = "ascrail" + (ascrailcounter++);
        } while (_doc.getElementById(this.id));
      }
  
      this.rail = false;
      this.cursor = false;
      this.cursorfreezed = false;
      this.selectiondrag = false;
  
      this.zoom = false;
      this.zoomactive = false;
  
      this.hasfocus = false;
      this.hasmousefocus = false;
  
      //this.visibility = true;
      this.railslocked = false;  // locked by resize
      this.locked = false;  // prevent lost of locked status sets by user
      this.hidden = false; // rails always hidden
      this.cursoractive = true; // user can interact with cursors
  
      this.wheelprevented = false; //prevent mousewheel event
  
      this.overflowx = opt.overflowx;
      this.overflowy = opt.overflowy;
  
      this.nativescrollingarea = false;
      this.checkarea = 0;
  
      this.events = []; // event list for unbind
  
      this.saved = {};  // style saved
  
      this.delaylist = {};
      this.synclist = {};
  
      this.lastdeltax = 0;
      this.lastdeltay = 0;
  
      this.detected = getBrowserDetection();
  
      var cap = $.extend({}, this.detected);
  
      this.canhwscroll = (cap.hastransform && opt.hwacceleration);
      this.ishwscroll = (this.canhwscroll && self.haswrapper);
  
      if (!this.isrtlmode) {
        this.hasreversehr = false;
      } else if (this.isvertical) { // RTL mode with reverse horizontal axis
        this.hasreversehr = !(cap.iswebkit || cap.isie || cap.isie11);
      } else {
        this.hasreversehr = !(cap.iswebkit || (cap.isie && !cap.isie10 && !cap.isie11));
      }
  
      this.istouchcapable = false; // desktop devices with touch screen support
  
      //## Check WebKit-based desktop with touch support
      //## + Firefox 18 nightly build (desktop) false positive (or desktop with touch support)
  
      if (!cap.cantouch && (cap.hasw3ctouch || cap.hasmstouch)) {  // desktop device with multiple input
        this.istouchcapable = true;
      } else if (cap.cantouch && !cap.isios && !cap.isandroid && (cap.iswebkit || cap.ismozilla)) {
        this.istouchcapable = true;
      }
  
      //## disable MouseLock API on user request
      if (!opt.enablemouselockapi) {
        cap.hasmousecapture = false;
        cap.haspointerlock = false;
      }
  
      this.debounced = function (name, fn, tm) {
        if (!self) return;
        var dd = self.delaylist[name] || false;
        if (!dd) {
          self.delaylist[name] = {
            h: setAnimationFrame(function () {
              self.delaylist[name].fn.call(self);
              self.delaylist[name] = false;
            }, tm)
          };
          fn.call(self);
        }
        self.delaylist[name].fn = fn;
      };
  
  
      this.synched = function (name, fn) {
        if (self.synclist[name]) self.synclist[name] = fn;
        else {
          self.synclist[name] = fn;
          setAnimationFrame(function () {
            if (!self) return;
            self.synclist[name] && self.synclist[name].call(self);
            self.synclist[name] = null;
          });
        }
      };
  
      this.unsynched = function (name) {
        if (self.synclist[name]) self.synclist[name] = false;
      };
  
      this.css = function (el, pars) { // save & set
        for (var n in pars) {
          self.saved.css.push([el, n, el.css(n)]);
          el.css(n, pars[n]);
        }
      };
  
      this.scrollTop = function (val) {
        return (val === undefined) ? self.getScrollTop() : self.setScrollTop(val);
      };
  
      this.scrollLeft = function (val) {
        return (val === undefined) ? self.getScrollLeft() : self.setScrollLeft(val);
      };
  
      // derived by by Dan Pupius www.pupius.net
      var BezierClass = function (st, ed, spd, p1, p2, p3, p4) {
  
        this.st = st;
        this.ed = ed;
        this.spd = spd;
  
        this.p1 = p1 || 0;
        this.p2 = p2 || 1;
        this.p3 = p3 || 0;
        this.p4 = p4 || 1;
  
        this.ts = now();
        this.df = ed - st;
      };
      BezierClass.prototype = {
        B2: function (t) {
          return 3 * (1 - t) * (1 - t) * t;
        },
        B3: function (t) {
          return 3 * (1 - t) * t * t;
        },
        B4: function (t) {
          return t * t * t;
        },
        getPos: function () {
          return (now() - this.ts) / this.spd;
        },
        getNow: function () {
          var pc = (now() - this.ts) / this.spd;
          var bz = this.B2(pc) + this.B3(pc) + this.B4(pc);
          return (pc >= 1) ? this.ed : this.st + (this.df * bz) | 0;
        },
        update: function (ed, spd) {
          this.st = this.getNow();
          this.ed = ed;
          this.spd = spd;
          this.ts = now();
          this.df = this.ed - this.st;
          return this;
        }
      };
  
      //derived from http://stackoverflow.com/questions/11236090/
      function getMatrixValues() {
        var tr = self.doc.css(cap.trstyle);
        if (tr && (tr.substr(0, 6) == "matrix")) {
          return tr.replace(/^.*\((.*)\)$/g, "$1").replace(/px/g, '').split(/, +/);
        }
        return false;
      }
  
      if (this.ishwscroll) {    // hw accelerated scroll
  
        this.doc.translate = {
          x: 0,
          y: 0,
          tx: "0px",
          ty: "0px"
        };
  
        //this one can help to enable hw accel on ios6 http://indiegamr.com/ios6-html-hardware-acceleration-changes-and-how-to-fix-them/
        if (cap.hastranslate3d && cap.isios) this.doc.css("-webkit-backface-visibility", "hidden"); // prevent flickering http://stackoverflow.com/questions/3461441/      
  
        this.getScrollTop = function (last) {
          if (!last) {
            var mtx = getMatrixValues();
            if (mtx) return (mtx.length == 16) ? -mtx[13] : -mtx[5]; //matrix3d 16 on IE10
            if (self.timerscroll && self.timerscroll.bz) return self.timerscroll.bz.getNow();
          }
          return self.doc.translate.y;
        };
  
        this.getScrollLeft = function (last) {
          if (!last) {
            var mtx = getMatrixValues();
            if (mtx) return (mtx.length == 16) ? -mtx[12] : -mtx[4]; //matrix3d 16 on IE10
            if (self.timerscroll && self.timerscroll.bh) return self.timerscroll.bh.getNow();
          }
          return self.doc.translate.x;
        };
  
        this.notifyScrollEvent = function (el) {
          var e = _doc.createEvent("UIEvents");
          e.initUIEvent("scroll", false, false, _win, 1);
          e.niceevent = true;
          el.dispatchEvent(e);
        };
  
        var cxscrollleft = (this.isrtlmode) ? 1 : -1;
  
        if (cap.hastranslate3d && opt.enabletranslate3d) {
          this.setScrollTop = function (val, silent) {
            self.doc.translate.y = val;
            self.doc.translate.ty = (val * -1) + "px";
            self.doc.css(cap.trstyle, "translate3d(" + self.doc.translate.tx + "," + self.doc.translate.ty + ",0)");
            if (!silent) self.notifyScrollEvent(self.win[0]);
          };
          this.setScrollLeft = function (val, silent) {
            self.doc.translate.x = val;
            self.doc.translate.tx = (val * cxscrollleft) + "px";
            self.doc.css(cap.trstyle, "translate3d(" + self.doc.translate.tx + "," + self.doc.translate.ty + ",0)");
            if (!silent) self.notifyScrollEvent(self.win[0]);
          };
        } else {
          this.setScrollTop = function (val, silent) {
            self.doc.translate.y = val;
            self.doc.translate.ty = (val * -1) + "px";
            self.doc.css(cap.trstyle, "translate(" + self.doc.translate.tx + "," + self.doc.translate.ty + ")");
            if (!silent) self.notifyScrollEvent(self.win[0]);
          };
          this.setScrollLeft = function (val, silent) {
            self.doc.translate.x = val;
            self.doc.translate.tx = (val * cxscrollleft) + "px";
            self.doc.css(cap.trstyle, "translate(" + self.doc.translate.tx + "," + self.doc.translate.ty + ")");
            if (!silent) self.notifyScrollEvent(self.win[0]);
          };
        }
      } else {    // native scroll
  
        this.getScrollTop = function () {
          return self.docscroll.scrollTop();
        };
        this.setScrollTop = function (val) {
          self.docscroll.scrollTop(val);
        };
  
        this.getScrollLeft = function () {
          var val;
          if (!self.hasreversehr) {
            val = self.docscroll.scrollLeft();
          } else if (self.detected.ismozilla) {
            val = self.page.maxw - Math.abs(self.docscroll.scrollLeft());
          } else {
            val = self.page.maxw - self.docscroll.scrollLeft();
          }
          return val;
        };
        this.setScrollLeft = function (val) {
          return setTimeout(function () {
            if (!self) return;
            if (self.hasreversehr) {
              if (self.detected.ismozilla) {
                val = -(self.page.maxw - val);
              } else {
                val = self.page.maxw - val;
              }
            }
            return self.docscroll.scrollLeft(val);
          }, 1);
        };
      }
  
      this.getTarget = function (e) {
        if (!e) return false;
        if (e.target) return e.target;
        if (e.srcElement) return e.srcElement;
        return false;
      };
  
      this.hasParent = function (e, id) {
        if (!e) return false;
        var el = e.target || e.srcElement || e || false;
        while (el && el.id != id) {
          el = el.parentNode || false;
        }
        return (el !== false);
      };
  
      function getZIndex() {
        var dom = self.win;
        if ("zIndex" in dom) return dom.zIndex(); // use jQuery UI method when available
        while (dom.length > 0) {
          if (dom[0].nodeType == 9) return false;
          var zi = dom.css('zIndex');
          if (!isNaN(zi) && zi !== 0) return parseInt(zi);
          dom = dom.parent();
        }
        return false;
      }
  
      //inspired by http://forum.jquery.com/topic/width-includes-border-width-when-set-to-thin-medium-thick-in-ie
      var _convertBorderWidth = {
        "thin": 1,
        "medium": 3,
        "thick": 5
      };
  
      function getWidthToPixel(dom, prop, chkheight) {
        var wd = dom.css(prop);
        var px = parseFloat(wd);
        if (isNaN(px)) {
          px = _convertBorderWidth[wd] || 0;
          var brd = (px == 3) ? ((chkheight) ? (self.win.outerHeight() - self.win.innerHeight()) : (self.win.outerWidth() - self.win.innerWidth())) : 1; //DON'T TRUST CSS
          if (self.isie8 && px) px += 1;
          return (brd) ? px : 0;
        }
        return px;
      }
  
      this.getDocumentScrollOffset = function () {
        return {
          top: _win.pageYOffset || _doc.documentElement.scrollTop,
          left: _win.pageXOffset || _doc.documentElement.scrollLeft
        };
      };
  
      this.getOffset = function () {
        if (self.isfixed) {
          var ofs = self.win.offset();  // fix Chrome auto issue (when right/bottom props only)
          var scrl = self.getDocumentScrollOffset();
          ofs.top -= scrl.top;
          ofs.left -= scrl.left;
          return ofs;
        }
        var ww = self.win.offset();
        if (!self.viewport) return ww;
        var vp = self.viewport.offset();
        return {
          top: ww.top - vp.top,
          left: ww.left - vp.left
        };
      };
  
      this.updateScrollBar = function (len) {
        var pos, off;
        if (self.ishwscroll) {
          self.rail.css({
            height: self.win.innerHeight() - (opt.railpadding.top + opt.railpadding.bottom)
          });
          if (self.railh) self.railh.css({
            width: self.win.innerWidth() - (opt.railpadding.left + opt.railpadding.right)
          });
        } else {
          var wpos = self.getOffset();
          pos = {
            top: wpos.top,
            left: wpos.left - (opt.railpadding.left + opt.railpadding.right)
          };
          pos.top += getWidthToPixel(self.win, 'border-top-width', true);
          pos.left += (self.rail.align) ? self.win.outerWidth() - getWidthToPixel(self.win, 'border-right-width') - self.rail.width : getWidthToPixel(self.win, 'border-left-width');
  
          off = opt.railoffset;
          if (off) {
            if (off.top) pos.top += off.top;
            if (off.left) pos.left += off.left;
          }
  
          if (!self.railslocked) self.rail.css({
            top: pos.top,
            left: pos.left,
            height: ((len) ? len.h : self.win.innerHeight()) - (opt.railpadding.top + opt.railpadding.bottom)
          });
  
          if (self.zoom) {
            self.zoom.css({
              top: pos.top + 1,
              left: (self.rail.align == 1) ? pos.left - 20 : pos.left + self.rail.width + 4
            });
          }
  
          if (self.railh && !self.railslocked) {
            pos = {
              top: wpos.top,
              left: wpos.left
            };
            off = opt.railhoffset;
            if (off) {
              if (off.top) pos.top += off.top;
              if (off.left) pos.left += off.left;
            }
            var y = (self.railh.align) ? pos.top + getWidthToPixel(self.win, 'border-top-width', true) + self.win.innerHeight() - self.railh.height : pos.top + getWidthToPixel(self.win, 'border-top-width', true);
            var x = pos.left + getWidthToPixel(self.win, 'border-left-width');
            self.railh.css({
              top: y - (opt.railpadding.top + opt.railpadding.bottom),
              left: x,
              width: self.railh.width
            });
          }
  
        }
      };
  
      this.doRailClick = function (e, dbl, hr) {
        var fn, pg, cur, pos;
  
        if (self.railslocked) return;
  
        self.cancelEvent(e);
  
        if (!("pageY" in e)) {
          e.pageX = e.clientX + _doc.documentElement.scrollLeft;
          e.pageY = e.clientY + _doc.documentElement.scrollTop;
        }
  
        if (dbl) {
          fn = (hr) ? self.doScrollLeft : self.doScrollTop;
          cur = (hr) ? ((e.pageX - self.railh.offset().left - (self.cursorwidth / 2)) * self.scrollratio.x) : ((e.pageY - self.rail.offset().top - (self.cursorheight / 2)) * self.scrollratio.y);
          self.unsynched("relativexy");
          fn(cur|0);
        } else {
          fn = (hr) ? self.doScrollLeftBy : self.doScrollBy;
          cur = (hr) ? self.scroll.x : self.scroll.y;
          pos = (hr) ? e.pageX - self.railh.offset().left : e.pageY - self.rail.offset().top;
          pg = (hr) ? self.view.w : self.view.h;
          fn((cur >= pos) ? pg : -pg);
        }
  
      };
  
      self.newscrolly = self.newscrollx = 0;
  
      self.hasanimationframe = ("requestAnimationFrame" in _win);
      self.hascancelanimationframe = ("cancelAnimationFrame" in _win);
  
      self.hasborderbox = false;
  
      this.init = function () {
  
        self.saved.css = [];
  
        if (cap.isoperamini) return true; // SORRY, DO NOT WORK!
        if (cap.isandroid && !("hidden" in _doc)) return true; // Android 3- SORRY, DO NOT WORK!
  
        opt.emulatetouch = opt.emulatetouch || opt.touchbehavior;  // mantain compatibility with "touchbehavior"      
  
        self.hasborderbox = _win.getComputedStyle && (_win.getComputedStyle(_doc.body)['box-sizing'] === "border-box");
  
        var _scrollyhidden = { 'overflow-y': 'hidden' };
        if (cap.isie11 || cap.isie10) _scrollyhidden['-ms-overflow-style'] = 'none';  // IE 10 & 11 is always a world apart!
  
        if (self.ishwscroll) {
          this.doc.css(cap.transitionstyle, cap.prefixstyle + 'transform 0ms ease-out');
          if (cap.transitionend) self.bind(self.doc, cap.transitionend, self.onScrollTransitionEnd, false); //I have got to do something usefull!!
        }
  
        self.zindex = "auto";
        if (!self.ispage && opt.zindex == "auto") {
          self.zindex = getZIndex() || "auto";
        } else {
          self.zindex = opt.zindex;
        }
  
        if (!self.ispage && self.zindex != "auto" && self.zindex > globalmaxzindex) {
          globalmaxzindex = self.zindex;
        }
  
        if (self.isie && self.zindex === 0 && opt.zindex == "auto") { // fix IE auto == 0
          self.zindex = "auto";
        }
  
        if (!self.ispage || !cap.isieold) {
  
          var cont = self.docscroll;
          if (self.ispage) cont = (self.haswrapper) ? self.win : self.doc;
  
          self.css(cont, _scrollyhidden);
  
          if (self.ispage && (cap.isie11 || cap.isie)) { // IE 7-11
            self.css($("html"), _scrollyhidden);
          }
  
          if (cap.isios && !self.ispage && !self.haswrapper) self.css($body, {
            "-webkit-overflow-scrolling": "touch"
          }); //force hw acceleration
  
          var cursor = $(_doc.createElement('div'));
          cursor.css({
            position: "relative",
            top: 0,
            "float": "right",
            width: opt.cursorwidth,
            height: 0,
            'background-color': opt.cursorcolor,
            border: opt.cursorborder,
            'background-clip': 'padding-box',
            '-webkit-border-radius': opt.cursorborderradius,
            '-moz-border-radius': opt.cursorborderradius,
            'border-radius': opt.cursorborderradius
          });
  
          cursor.addClass('nicescroll-cursors');
  
          self.cursor = cursor;
  
          var rail = $(_doc.createElement('div'));
          rail.attr('id', self.id);
          rail.addClass('nicescroll-rails nicescroll-rails-vr');
  
          var v, a, kp = ["left", "right", "top", "bottom"];  //**
          for (var n in kp) {
            a = kp[n];
            v = opt.railpadding[a] || 0;
            v && rail.css("padding-" + a, v + "px");
          }
  
          rail.append(cursor);
  
          rail.width = Math.max(parseFloat(opt.cursorwidth), cursor.outerWidth());
          rail.css({
            width: rail.width + "px",
            zIndex: self.zindex,
            background: opt.background,
            cursor: "default"
          });
  
          rail.visibility = true;
          rail.scrollable = true;
  
          rail.align = (opt.railalign == "left") ? 0 : 1;
  
          self.rail = rail;
  
          self.rail.drag = false;
  
          var zoom = false;
          if (opt.boxzoom && !self.ispage && !cap.isieold) {
            zoom = _doc.createElement('div');
  
            self.bind(zoom, "click", self.doZoom);
            self.bind(zoom, "mouseenter", function () {
              self.zoom.css('opacity', opt.cursoropacitymax);
            });
            self.bind(zoom, "mouseleave", function () {
              self.zoom.css('opacity', opt.cursoropacitymin);
            });
  
            self.zoom = $(zoom);
            self.zoom.css({
              cursor: "pointer",
              zIndex: self.zindex,
              backgroundImage: 'url(' + opt.scriptpath + 'zoomico.png)',
              height: 18,
              width: 18,
              backgroundPosition: '0 0'
            });
            if (opt.dblclickzoom) self.bind(self.win, "dblclick", self.doZoom);
            if (cap.cantouch && opt.gesturezoom) {
              self.ongesturezoom = function (e) {
                if (e.scale > 1.5) self.doZoomIn(e);
                if (e.scale < 0.8) self.doZoomOut(e);
                return self.cancelEvent(e);
              };
              self.bind(self.win, "gestureend", self.ongesturezoom);
            }
          }
  
          // init HORIZ
  
          self.railh = false;
          var railh;
  
          if (opt.horizrailenabled) {
  
            self.css(cont, {
              overflowX: 'hidden'
            });
  
            cursor = $(_doc.createElement('div'));
            cursor.css({
              position: "absolute",
              top: 0,
              height: opt.cursorwidth,
              width: 0,
              backgroundColor: opt.cursorcolor,
              border: opt.cursorborder,
              backgroundClip: 'padding-box',
              '-webkit-border-radius': opt.cursorborderradius,
              '-moz-border-radius': opt.cursorborderradius,
              'border-radius': opt.cursorborderradius
            });
  
            if (cap.isieold) cursor.css('overflow', 'hidden');  //IE6 horiz scrollbar issue
  
            cursor.addClass('nicescroll-cursors');
  
            self.cursorh = cursor;
  
            railh = $(_doc.createElement('div'));
            railh.attr('id', self.id + '-hr');
            railh.addClass('nicescroll-rails nicescroll-rails-hr');
            railh.height = Math.max(parseFloat(opt.cursorwidth), cursor.outerHeight());
            railh.css({
              height: railh.height + "px",
              'zIndex': self.zindex,
              "background": opt.background
            });
  
            railh.append(cursor);
  
            railh.visibility = true;
            railh.scrollable = true;
  
            railh.align = (opt.railvalign == "top") ? 0 : 1;
  
            self.railh = railh;
  
            self.railh.drag = false;
  
          }
  
          if (self.ispage) {
  
            rail.css({
              position: "fixed",
              top: 0,
              height: "100%"
            });
  
            rail.css((rail.align) ? { right: 0 } : { left: 0 });
  
            self.body.append(rail);
            if (self.railh) {
              railh.css({
                position: "fixed",
                left: 0,
                width: "100%"
              });
  
              railh.css((railh.align) ? { bottom: 0 } : { top: 0 });
  
              self.body.append(railh);
            }
          } else {
            if (self.ishwscroll) {
              if (self.win.css('position') == 'static') self.css(self.win, { 'position': 'relative' });
              var bd = (self.win[0].nodeName == 'HTML') ? self.body : self.win;
              $(bd).scrollTop(0).scrollLeft(0);  // fix rail position if content already scrolled
              if (self.zoom) {
                self.zoom.css({
                  position: "absolute",
                  top: 1,
                  right: 0,
                  "margin-right": rail.width + 4
                });
                bd.append(self.zoom);
              }
              rail.css({
                position: "absolute",
                top: 0
              });
              rail.css((rail.align) ? { right: 0 } : { left: 0 });
              bd.append(rail);
              if (railh) {
                railh.css({
                  position: "absolute",
                  left: 0,
                  bottom: 0
                });
                railh.css((railh.align) ? { bottom: 0 } : { top: 0 });
                bd.append(railh);
              }
            } else {
              self.isfixed = (self.win.css("position") == "fixed");
              var rlpos = (self.isfixed) ? "fixed" : "absolute";
  
              if (!self.isfixed) self.viewport = self.getViewport(self.win[0]);
              if (self.viewport) {
                self.body = self.viewport;
                if (!(/fixed|absolute/.test(self.viewport.css("position")))) self.css(self.viewport, {
                  "position": "relative"
                });
              }
  
              rail.css({
                position: rlpos
              });
              if (self.zoom) self.zoom.css({
                position: rlpos
              });
              self.updateScrollBar();
              self.body.append(rail);
              if (self.zoom) self.body.append(self.zoom);
              if (self.railh) {
                railh.css({
                  position: rlpos
                });
                self.body.append(railh);
              }
            }
  
            if (cap.isios) self.css(self.win, {
              '-webkit-tap-highlight-color': 'rgba(0,0,0,0)',
              '-webkit-touch-callout': 'none'
            }); // prevent grey layer on click
  
            if (opt.disableoutline) {
              if (cap.isie) self.win.attr("hideFocus", "true"); // IE, prevent dotted rectangle on focused div
              if (cap.iswebkit) self.win.css('outline', 'none');  // Webkit outline
            }
  
          }
  
          if (opt.autohidemode === false) {
            self.autohidedom = false;
            self.rail.css({
              opacity: opt.cursoropacitymax
            });
            if (self.railh) self.railh.css({
              opacity: opt.cursoropacitymax
            });
          } else if ((opt.autohidemode === true) || (opt.autohidemode === "leave")) {
            self.autohidedom = $().add(self.rail);
            if (cap.isie8) self.autohidedom = self.autohidedom.add(self.cursor);
            if (self.railh) self.autohidedom = self.autohidedom.add(self.railh);
            if (self.railh && cap.isie8) self.autohidedom = self.autohidedom.add(self.cursorh);
          } else if (opt.autohidemode == "scroll") {
            self.autohidedom = $().add(self.rail);
            if (self.railh) self.autohidedom = self.autohidedom.add(self.railh);
          } else if (opt.autohidemode == "cursor") {
            self.autohidedom = $().add(self.cursor);
            if (self.railh) self.autohidedom = self.autohidedom.add(self.cursorh);
          } else if (opt.autohidemode == "hidden") {
            self.autohidedom = false;
            self.hide();
            self.railslocked = false;
          }
  
          if (cap.cantouch || self.istouchcapable || opt.emulatetouch || cap.hasmstouch) {
  
            self.scrollmom = new ScrollMomentumClass2D(self);
  
            var delayedclick = null;
  
            self.ontouchstart = function (e) {
  
              if (self.locked) return false;
  
              //if (e.pointerType && e.pointerType != 2 && e.pointerType != "touch") return false;
              if (e.pointerType && (e.pointerType === 'mouse' || e.pointerType === e.MSPOINTER_TYPE_MOUSE)) return false;  // need test on surface!!
  
              self.hasmoving = false;
  
              if (self.scrollmom.timer) {
                self.triggerScrollEnd();
                self.scrollmom.stop();
              }
  
              if (!self.railslocked) {
                var tg = self.getTarget(e);
  
                if (tg) {
                  var skp = (/INPUT/i.test(tg.nodeName)) && (/range/i.test(tg.type));
                  if (skp) return self.stopPropagation(e);
                }
  
                var ismouse = (e.type === "mousedown");
  
                if (!("clientX" in e) && ("changedTouches" in e)) {
                  e.clientX = e.changedTouches[0].clientX;
                  e.clientY = e.changedTouches[0].clientY;
                }
  
                if (self.forcescreen) {
                  var le = e;
                  e = {
                    "original": (e.original) ? e.original : e
                  };
                  e.clientX = le.screenX;
                  e.clientY = le.screenY;
                }
  
                self.rail.drag = {
                  x: e.clientX,
                  y: e.clientY,
                  sx: self.scroll.x,
                  sy: self.scroll.y,
                  st: self.getScrollTop(),
                  sl: self.getScrollLeft(),
                  pt: 2,
                  dl: false,
                  tg: tg
                };
  
                if (self.ispage || !opt.directionlockdeadzone) {
  
                  self.rail.drag.dl = "f";
  
                } else {
  
                  var view = {
                    w: $window.width(),
                    h: $window.height()
                  };
  
                  var page = self.getContentSize();
  
                  var maxh = page.h - view.h;
                  var maxw = page.w - view.w;
  
                  if (self.rail.scrollable && !self.railh.scrollable) self.rail.drag.ck = (maxh > 0) ? "v" : false;
                  else if (!self.rail.scrollable && self.railh.scrollable) self.rail.drag.ck = (maxw > 0) ? "h" : false;
                  else self.rail.drag.ck = false;
  
                }
  
                if (opt.emulatetouch && self.isiframe && cap.isie) {
                  var wp = self.win.position();
                  self.rail.drag.x += wp.left;
                  self.rail.drag.y += wp.top;
                }
  
                self.hasmoving = false;
                self.lastmouseup = false;
                self.scrollmom.reset(e.clientX, e.clientY);
  
                if (tg&&ismouse) {
  
                  var ip = /INPUT|SELECT|BUTTON|TEXTAREA/i.test(tg.nodeName);
                  if (!ip) {
                    if (cap.hasmousecapture) tg.setCapture();
                    if (opt.emulatetouch) {
                      if (tg.onclick && !(tg._onclick || false)) { // intercept DOM0 onclick event
                        tg._onclick = tg.onclick;
                        tg.onclick = function (e) {
                          if (self.hasmoving) return false;
                          tg._onclick.call(this, e);
                        };
                      }
                      return self.cancelEvent(e);
                    }
                    return self.stopPropagation(e);
                  }
  
                  if (/SUBMIT|CANCEL|BUTTON/i.test($(tg).attr('type'))) {
                    self.preventclick = {
                      "tg": tg,
                      "click": false
                    };
                  }
  
                }
              }
  
            };
  
            self.ontouchend = function (e) {
  
              if (!self.rail.drag) return true;
  
              if (self.rail.drag.pt == 2) {
                //if (e.pointerType && e.pointerType != 2 && e.pointerType != "touch") return false;
                if (e.pointerType && (e.pointerType === 'mouse' || e.pointerType === e.MSPOINTER_TYPE_MOUSE)) return false;
  
                self.rail.drag = false;
  
                var ismouse = (e.type === "mouseup");
  
                if (self.hasmoving) {
                  self.scrollmom.doMomentum();
                  self.lastmouseup = true;
                  self.hideCursor();
                  if (cap.hasmousecapture) _doc.releaseCapture();
                  if (ismouse) return self.cancelEvent(e);
                }
  
              }
              else if (self.rail.drag.pt == 1) {
                return self.onmouseup(e);
              }
  
            };
  
            var moveneedoffset = (opt.emulatetouch && self.isiframe && !cap.hasmousecapture);
  
            var locktollerance = opt.directionlockdeadzone * 0.3 | 0;
  
            self.ontouchmove = function (e, byiframe) {
  
              if (!self.rail.drag) return true;
  
              if (e.targetTouches && opt.preventmultitouchscrolling) {
                if (e.targetTouches.length > 1) return true; // multitouch
              }
  
              //if (e.pointerType && e.pointerType != 2 && e.pointerType != "touch") return false;
              if (e.pointerType && (e.pointerType === 'mouse' || e.pointerType === e.MSPOINTER_TYPE_MOUSE)) return true;
  
              if (self.rail.drag.pt == 2) {
  
                if (("changedTouches" in e)) {
                  e.clientX = e.changedTouches[0].clientX;
                  e.clientY = e.changedTouches[0].clientY;
                }
  
                var ofy, ofx;
                ofx = ofy = 0;
  
                if (moveneedoffset && !byiframe) {
                  var wp = self.win.position();
                  ofx = -wp.left;
                  ofy = -wp.top;
                }
  
                var fy = e.clientY + ofy;
                var my = (fy - self.rail.drag.y);
                var fx = e.clientX + ofx;
                var mx = (fx - self.rail.drag.x);
  
                var ny = self.rail.drag.st - my;
  
                if (self.ishwscroll && opt.bouncescroll) {
                  if (ny < 0) {
                    ny = Math.round(ny / 2);
                  } else if (ny > self.page.maxh) {
                    ny = self.page.maxh + Math.round((ny - self.page.maxh) / 2);
                  }
                } else {
                  if (ny < 0) {
                    ny = 0;
                    fy = 0;
                  }
                  else if (ny > self.page.maxh) {
                    ny = self.page.maxh;
                    fy = 0;
                  }
                  if (fy === 0 && !self.hasmoving) {
                    if (!self.ispage) self.rail.drag = false;
                    return true;
                  }
                }
  
                var nx = self.getScrollLeft();
  
                if (self.railh && self.railh.scrollable) {
                  nx = (self.isrtlmode) ? mx - self.rail.drag.sl : self.rail.drag.sl - mx;
  
                  if (self.ishwscroll && opt.bouncescroll) {
                    if (nx < 0) {
                      nx = Math.round(nx / 2);
                    } else if (nx > self.page.maxw) {
                      nx = self.page.maxw + Math.round((nx - self.page.maxw) / 2);
                    }
                  } else {
                    if (nx < 0) {
                      nx = 0;
                      fx = 0;
                    }
                    if (nx > self.page.maxw) {
                      nx = self.page.maxw;
                      fx = 0;
                    }
                  }
  
                }
  
  
                if (!self.hasmoving) {
  
                  if (self.rail.drag.y === e.clientY && self.rail.drag.x === e.clientX) return self.cancelEvent(e);  // prevent first useless move event 
  
                  var ay = Math.abs(my);
                  var ax = Math.abs(mx);
                  var dz = opt.directionlockdeadzone;
  
                  if (!self.rail.drag.ck) {
                    if (ay > dz && ax > dz) self.rail.drag.dl = "f";
                    else if (ay > dz) self.rail.drag.dl = (ax > locktollerance) ? "f" : "v";
                    else if (ax > dz) self.rail.drag.dl = (ay > locktollerance) ? "f" : "h";
                  }
                  else if (self.rail.drag.ck == "v") {
                    if (ax > dz && ay <= locktollerance) {
                      self.rail.drag = false;
                    }
                    else if (ay > dz) self.rail.drag.dl = "v";
  
                  }
                  else if (self.rail.drag.ck == "h") {
  
                    if (ay > dz && ax <= locktollerance) {
                      self.rail.drag = false;
                    }
                    else if (ax > dz) self.rail.drag.dl = "h";
  
                  }
  
                  if (!self.rail.drag.dl) return self.cancelEvent(e);
  
                  self.triggerScrollStart(e.clientX, e.clientY, 0, 0, 0);
                  self.hasmoving = true;
                }
  
                if (self.preventclick && !self.preventclick.click) {
                  self.preventclick.click = self.preventclick.tg.onclick || false;
                  self.preventclick.tg.onclick = self.onpreventclick;
                }
  
                if (self.rail.drag.dl) {
                  if (self.rail.drag.dl == "v") nx = self.rail.drag.sl;
                  else if (self.rail.drag.dl == "h") ny = self.rail.drag.st;
                }
  
                self.synched("touchmove", function () {
                  if (self.rail.drag && (self.rail.drag.pt == 2)) {
                    if (self.prepareTransition) self.resetTransition();
                    if (self.rail.scrollable) self.setScrollTop(ny);
                    self.scrollmom.update(fx, fy);
                    if (self.railh && self.railh.scrollable) {
                      self.setScrollLeft(nx);
                      self.showCursor(ny, nx);
                    } else {
                      self.showCursor(ny);
                    }
                    if (cap.isie10) _doc.selection.clear();
                  }
                });
  
                return self.cancelEvent(e);
  
              }
              else if (self.rail.drag.pt == 1) { // drag on cursor
                return self.onmousemove(e);
              }
  
            };
  
            self.ontouchstartCursor = function (e, hronly) {
              if (self.rail.drag && self.rail.drag.pt != 3) return;
              if (self.locked) return self.cancelEvent(e);
              self.cancelScroll();
              self.rail.drag = {
                x: e.touches[0].clientX,
                y: e.touches[0].clientY,
                sx: self.scroll.x,
                sy: self.scroll.y,
                pt: 3,
                hr: (!!hronly)
              };
              var tg = self.getTarget(e);
              if (!self.ispage && cap.hasmousecapture) tg.setCapture();
              if (self.isiframe && !cap.hasmousecapture) {
                self.saved.csspointerevents = self.doc.css("pointer-events");
                self.css(self.doc, { "pointer-events": "none" });
              }
              return self.cancelEvent(e);
            };
  
            self.ontouchendCursor = function (e) {
              if (self.rail.drag) {
                if (cap.hasmousecapture) _doc.releaseCapture();
                if (self.isiframe && !cap.hasmousecapture) self.doc.css("pointer-events", self.saved.csspointerevents);
                if (self.rail.drag.pt != 3) return;
                self.rail.drag = false;
                return self.cancelEvent(e);
              }
            };
  
            self.ontouchmoveCursor = function (e) {
              if (self.rail.drag) {
                if (self.rail.drag.pt != 3) return;
  
                self.cursorfreezed = true;
  
                if (self.rail.drag.hr) {
                  self.scroll.x = self.rail.drag.sx + (e.touches[0].clientX - self.rail.drag.x);
                  if (self.scroll.x < 0) self.scroll.x = 0;
                  var mw = self.scrollvaluemaxw;
                  if (self.scroll.x > mw) self.scroll.x = mw;
                } else {
                  self.scroll.y = self.rail.drag.sy + (e.touches[0].clientY - self.rail.drag.y);
                  if (self.scroll.y < 0) self.scroll.y = 0;
                  var my = self.scrollvaluemax;
                  if (self.scroll.y > my) self.scroll.y = my;
                }
  
                self.synched('touchmove', function () {
                  if (self.rail.drag && (self.rail.drag.pt == 3)) {
                    self.showCursor();
                    if (self.rail.drag.hr) self.doScrollLeft(Math.round(self.scroll.x * self.scrollratio.x), opt.cursordragspeed);
                    else self.doScrollTop(Math.round(self.scroll.y * self.scrollratio.y), opt.cursordragspeed);
                  }
                });
  
                return self.cancelEvent(e);
              }
  
            };
  
          }
  
          self.onmousedown = function (e, hronly) {
            if (self.rail.drag && self.rail.drag.pt != 1) return;
            if (self.railslocked) return self.cancelEvent(e);
            self.cancelScroll();
            self.rail.drag = {
              x: e.clientX,
              y: e.clientY,
              sx: self.scroll.x,
              sy: self.scroll.y,
              pt: 1,
              hr: hronly || false
            };
            var tg = self.getTarget(e);
  
            if (cap.hasmousecapture) tg.setCapture();
            if (self.isiframe && !cap.hasmousecapture) {
              self.saved.csspointerevents = self.doc.css("pointer-events");
              self.css(self.doc, {
                "pointer-events": "none"
              });
            }
            self.hasmoving = false;
            return self.cancelEvent(e);
          };
  
          self.onmouseup = function (e) {
            if (self.rail.drag) {
              if (self.rail.drag.pt != 1) return true;
  
              if (cap.hasmousecapture) _doc.releaseCapture();
              if (self.isiframe && !cap.hasmousecapture) self.doc.css("pointer-events", self.saved.csspointerevents);
              self.rail.drag = false;
              self.cursorfreezed = false;
              if (self.hasmoving) self.triggerScrollEnd();
              return self.cancelEvent(e);
            }
          };
  
          self.onmousemove = function (e) {
            if (self.rail.drag) {
              if (self.rail.drag.pt !== 1) return;
  
              if (cap.ischrome && e.which === 0) return self.onmouseup(e);
  
              self.cursorfreezed = true;
  
              if (!self.hasmoving) self.triggerScrollStart(e.clientX, e.clientY, 0, 0, 0);
  
              self.hasmoving = true;
  
              if (self.rail.drag.hr) {
                self.scroll.x = self.rail.drag.sx + (e.clientX - self.rail.drag.x);
                if (self.scroll.x < 0) self.scroll.x = 0;
                var mw = self.scrollvaluemaxw;
                if (self.scroll.x > mw) self.scroll.x = mw;
              } else {
                self.scroll.y = self.rail.drag.sy + (e.clientY - self.rail.drag.y);
                if (self.scroll.y < 0) self.scroll.y = 0;
                var my = self.scrollvaluemax;
                if (self.scroll.y > my) self.scroll.y = my;
              }
  
              self.synched('mousemove', function () {
  
                if (self.cursorfreezed) {
                  self.showCursor();
  
                  if (self.rail.drag.hr) {
                    self.scrollLeft(Math.round(self.scroll.x * self.scrollratio.x));
                  } else {
                    self.scrollTop(Math.round(self.scroll.y * self.scrollratio.y));
                  }
  
                }
              });
  
              return self.cancelEvent(e);
            }
            else {
              self.checkarea = 0;
            }
          };
  
          if (cap.cantouch || opt.emulatetouch) {
  
            self.onpreventclick = function (e) {
              if (self.preventclick) {
                self.preventclick.tg.onclick = self.preventclick.click;
                self.preventclick = false;
                return self.cancelEvent(e);
              }
            };
  
            self.onclick = (cap.isios) ? false : function (e) {  // it needs to check IE11 ???
              if (self.lastmouseup) {
                self.lastmouseup = false;
                return self.cancelEvent(e);
              } else {
                return true;
              }
            };
  
            if (opt.grabcursorenabled && cap.cursorgrabvalue) {
              self.css((self.ispage) ? self.doc : self.win, {
                'cursor': cap.cursorgrabvalue
              });
              self.css(self.rail, {
                'cursor': cap.cursorgrabvalue
              });
            }
  
          } else {
  
            var checkSelectionScroll = function (e) {
              if (!self.selectiondrag) return;
  
              if (e) {
                var ww = self.win.outerHeight();
                var df = (e.pageY - self.selectiondrag.top);
                if (df > 0 && df < ww) df = 0;
                if (df >= ww) df -= ww;
                self.selectiondrag.df = df;
              }
              if (self.selectiondrag.df === 0) return;
  
              var rt = -(self.selectiondrag.df*2/6)|0;
              self.doScrollBy(rt);
  
              self.debounced("doselectionscroll", function () {
                checkSelectionScroll();
              }, 50);
            };
  
            if ("getSelection" in _doc) { // A grade - Major browsers
              self.hasTextSelected = function () {
                return (_doc.getSelection().rangeCount > 0);
              };
            } else if ("selection" in _doc) { //IE9-
              self.hasTextSelected = function () {
                return (_doc.selection.type != "None");
              };
            } else {
              self.hasTextSelected = function () { // no support
                return false;
              };
            }
  
            self.onselectionstart = function (e) {
              //  More testing - severe chrome issues           
              /* 
                            if (!self.haswrapper&&(e.which&&e.which==2)) {  // fool browser to manage middle button scrolling
                              self.win.css({'overflow':'auto'});
                              setTimeout(function(){
                                self.win.css({'overflow':'hidden'});
                              },10);                
                              return true;
                            }            
              */
              if (self.ispage) return;
              self.selectiondrag = self.win.offset();
            };
  
            self.onselectionend = function (e) {
              self.selectiondrag = false;
            };
            self.onselectiondrag = function (e) {
              if (!self.selectiondrag) return;
              if (self.hasTextSelected()) self.debounced("selectionscroll", function () {
                checkSelectionScroll(e);
              }, 250);
            };
          }
  
          if (cap.hasw3ctouch) { //IE11+
            self.css((self.ispage) ? $("html") : self.win, { 'touch-action': 'none' });
            self.css(self.rail, {
              'touch-action': 'none'
            });
            self.css(self.cursor, {
              'touch-action': 'none'
            });
            self.bind(self.win, "pointerdown", self.ontouchstart);
            self.bind(_doc, "pointerup", self.ontouchend);
            self.delegate(_doc, "pointermove", self.ontouchmove);
          } else if (cap.hasmstouch) { //IE10
            self.css((self.ispage) ? $("html") : self.win, { '-ms-touch-action': 'none' });
            self.css(self.rail, {
              '-ms-touch-action': 'none'
            });
            self.css(self.cursor, {
              '-ms-touch-action': 'none'
            });
            self.bind(self.win, "MSPointerDown", self.ontouchstart);
            self.bind(_doc, "MSPointerUp", self.ontouchend);
            self.delegate(_doc, "MSPointerMove", self.ontouchmove);
            self.bind(self.cursor, "MSGestureHold", function (e) {
              e.preventDefault();
            });
            self.bind(self.cursor, "contextmenu", function (e) {
              e.preventDefault();
            });
          } else if (cap.cantouch) { // smartphones/touch devices
            self.bind(self.win, "touchstart", self.ontouchstart, false, true);
            self.bind(_doc, "touchend", self.ontouchend, false, true);
            self.bind(_doc, "touchcancel", self.ontouchend, false, true);
            self.delegate(_doc, "touchmove", self.ontouchmove, false, true);
          }
  
          if (opt.emulatetouch) {
            self.bind(self.win, "mousedown", self.ontouchstart, false, true);
            self.bind(_doc, "mouseup", self.ontouchend, false, true);
            self.bind(_doc, "mousemove", self.ontouchmove, false, true);
          }
  
          if (opt.cursordragontouch || (!cap.cantouch && !opt.emulatetouch)) {
  
            self.rail.css({
              cursor: "default"
            });
            self.railh && self.railh.css({
              cursor: "default"
            });
  
            self.jqbind(self.rail, "mouseenter", function () {
              if (!self.ispage && !self.win.is(":visible")) return false;
              if (self.canshowonmouseevent) self.showCursor();
              self.rail.active = true;
            });
            self.jqbind(self.rail, "mouseleave", function () {
              self.rail.active = false;
              if (!self.rail.drag) self.hideCursor();
            });
  
            if (opt.sensitiverail) {
              self.bind(self.rail, "click", function (e) {
                self.doRailClick(e, false, false);
              });
              self.bind(self.rail, "dblclick", function (e) {
                self.doRailClick(e, true, false);
              });
              self.bind(self.cursor, "click", function (e) {
                self.cancelEvent(e);
              });
              self.bind(self.cursor, "dblclick", function (e) {
                self.cancelEvent(e);
              });
            }
  
            if (self.railh) {
              self.jqbind(self.railh, "mouseenter", function () {
                if (!self.ispage && !self.win.is(":visible")) return false;
                if (self.canshowonmouseevent) self.showCursor();
                self.rail.active = true;
              });
              self.jqbind(self.railh, "mouseleave", function () {
                self.rail.active = false;
                if (!self.rail.drag) self.hideCursor();
              });
  
              if (opt.sensitiverail) {
                self.bind(self.railh, "click", function (e) {
                  self.doRailClick(e, false, true);
                });
                self.bind(self.railh, "dblclick", function (e) {
                  self.doRailClick(e, true, true);
                });
                self.bind(self.cursorh, "click", function (e) {
                  self.cancelEvent(e);
                });
                self.bind(self.cursorh, "dblclick", function (e) {
                  self.cancelEvent(e);
                });
              }
  
            }
  
          }
  
          if (opt.cursordragontouch && (this.istouchcapable || cap.cantouch)) {
            self.bind(self.cursor, "touchstart", self.ontouchstartCursor);
            self.bind(self.cursor, "touchmove", self.ontouchmoveCursor);
            self.bind(self.cursor, "touchend", self.ontouchendCursor);
            self.cursorh && self.bind(self.cursorh, "touchstart", function (e) {
              self.ontouchstartCursor(e, true);
            });
            self.cursorh && self.bind(self.cursorh, "touchmove", self.ontouchmoveCursor);
            self.cursorh && self.bind(self.cursorh, "touchend", self.ontouchendCursor);
          }
  
  //        if (!cap.cantouch && !opt.emulatetouch) {
          if (!opt.emulatetouch && !cap.isandroid && !cap.isios) {
  
            self.bind((cap.hasmousecapture) ? self.win : _doc, "mouseup", self.onmouseup);
            self.bind(_doc, "mousemove", self.onmousemove);
            if (self.onclick) self.bind(_doc, "click", self.onclick);
  
            self.bind(self.cursor, "mousedown", self.onmousedown);
            self.bind(self.cursor, "mouseup", self.onmouseup);
  
            if (self.railh) {
              self.bind(self.cursorh, "mousedown", function (e) {
                self.onmousedown(e, true);
              });
              self.bind(self.cursorh, "mouseup", self.onmouseup);
            }
  
            if (!self.ispage && opt.enablescrollonselection) {
              self.bind(self.win[0], "mousedown", self.onselectionstart);
              self.bind(_doc, "mouseup", self.onselectionend);
              self.bind(self.cursor, "mouseup", self.onselectionend);
              if (self.cursorh) self.bind(self.cursorh, "mouseup", self.onselectionend);
              self.bind(_doc, "mousemove", self.onselectiondrag);
            }
  
            if (self.zoom) {
              self.jqbind(self.zoom, "mouseenter", function () {
                if (self.canshowonmouseevent) self.showCursor();
                self.rail.active = true;
              });
              self.jqbind(self.zoom, "mouseleave", function () {
                self.rail.active = false;
                if (!self.rail.drag) self.hideCursor();
              });
            }
  
          } else {
  
            self.bind((cap.hasmousecapture) ? self.win : _doc, "mouseup", self.ontouchend);
            if (self.onclick) self.bind(_doc, "click", self.onclick);
  
            if (opt.cursordragontouch) {
              self.bind(self.cursor, "mousedown", self.onmousedown);
              self.bind(self.cursor, "mouseup", self.onmouseup);
              self.cursorh && self.bind(self.cursorh, "mousedown", function (e) {
                self.onmousedown(e, true);
              });
              self.cursorh && self.bind(self.cursorh, "mouseup", self.onmouseup);
            } else {
              self.bind(self.rail, "mousedown", function (e) { e.preventDefault(); });  // prevent text selection             
              self.railh && self.bind(self.railh, "mousedown", function (e) { e.preventDefault(); });
            }
  
          }
  
  
          if (opt.enablemousewheel) {
            if (!self.isiframe) self.mousewheel((cap.isie && self.ispage) ? _doc : self.win, self.onmousewheel);
            self.mousewheel(self.rail, self.onmousewheel);
            if (self.railh) self.mousewheel(self.railh, self.onmousewheelhr);
          }
  
          if (!self.ispage && !cap.cantouch && !(/HTML|^BODY/.test(self.win[0].nodeName))) {
            if (!self.win.attr("tabindex")) self.win.attr({
              "tabindex": ++tabindexcounter
            });
  
            self.bind(self.win, "focus", function (e) {  // better using native events
              domfocus = (self.getTarget(e)).id || self.getTarget(e) || false;
              self.hasfocus = true;
              if (self.canshowonmouseevent) self.noticeCursor();
            });
            self.bind(self.win, "blur", function (e) {  // *
              domfocus = false;
              self.hasfocus = false;
            });
  
            self.bind(self.win, "mouseenter", function (e) {   // *
              mousefocus = (self.getTarget(e)).id || self.getTarget(e) || false;
              self.hasmousefocus = true;
              if (self.canshowonmouseevent) self.noticeCursor();
            });
            self.bind(self.win, "mouseleave", function (e) {   // *       
              mousefocus = false;
              self.hasmousefocus = false;
              if (!self.rail.drag) self.hideCursor();
            });
  
          }
  
  
          //Thanks to http://www.quirksmode.org !!
          self.onkeypress = function (e) {
            if (self.railslocked && self.page.maxh === 0) return true;
  
            e = e || _win.event;
            var tg = self.getTarget(e);
            if (tg && /INPUT|TEXTAREA|SELECT|OPTION/.test(tg.nodeName)) {
              var tp = tg.getAttribute('type') || tg.type || false;
              if ((!tp) || !(/submit|button|cancel/i.tp)) return true;
            }
  
            if ($(tg).attr('contenteditable')) return true;
  
            if (self.hasfocus || (self.hasmousefocus && !domfocus) || (self.ispage && !domfocus && !mousefocus)) {
              var key = e.keyCode;
  
              if (self.railslocked && key != 27) return self.cancelEvent(e);
  
              var ctrl = e.ctrlKey || false;
              var shift = e.shiftKey || false;
  
              var ret = false;
              switch (key) {
                case 38:
                case 63233: //safari
                  self.doScrollBy(24 * 3);
                  ret = true;
                  break;
                case 40:
                case 63235: //safari
                  self.doScrollBy(-24 * 3);
                  ret = true;
                  break;
                case 37:
                case 63232: //safari
                  if (self.railh) {
                    (ctrl) ? self.doScrollLeft(0) : self.doScrollLeftBy(24 * 3);
                    ret = true;
                  }
                  break;
                case 39:
                case 63234: //safari
                  if (self.railh) {
                    (ctrl) ? self.doScrollLeft(self.page.maxw) : self.doScrollLeftBy(-24 * 3);
                    ret = true;
                  }
                  break;
                case 33:
                case 63276: // safari
                  self.doScrollBy(self.view.h);
                  ret = true;
                  break;
                case 34:
                case 63277: // safari
                  self.doScrollBy(-self.view.h);
                  ret = true;
                  break;
                case 36:
                case 63273: // safari                
                  (self.railh && ctrl) ? self.doScrollPos(0, 0) : self.doScrollTo(0);
                  ret = true;
                  break;
                case 35:
                case 63275: // safari
                  (self.railh && ctrl) ? self.doScrollPos(self.page.maxw, self.page.maxh) : self.doScrollTo(self.page.maxh);
                  ret = true;
                  break;
                case 32:
                  if (opt.spacebarenabled) {
                    (shift) ? self.doScrollBy(self.view.h) : self.doScrollBy(-self.view.h);
                    ret = true;
                  }
                  break;
                case 27: // ESC
                  if (self.zoomactive) {
                    self.doZoom();
                    ret = true;
                  }
                  break;
              }
              if (ret) return self.cancelEvent(e);
            }
          };
  
          if (opt.enablekeyboard) self.bind(_doc, (cap.isopera && !cap.isopera12) ? "keypress" : "keydown", self.onkeypress);
  
          self.bind(_doc, "keydown", function (e) {
            var ctrl = e.ctrlKey || false;
            if (ctrl) self.wheelprevented = true;
          });
          self.bind(_doc, "keyup", function (e) {
            var ctrl = e.ctrlKey || false;
            if (!ctrl) self.wheelprevented = false;
          });
          self.bind(_win, "blur", function (e) {
            self.wheelprevented = false;
          });
  
          self.bind(_win, 'resize', self.onscreenresize);
          self.bind(_win, 'orientationchange', self.onscreenresize);
  
          self.bind(_win, "load", self.lazyResize);
  
          if (cap.ischrome && !self.ispage && !self.haswrapper) { //chrome void scrollbar bug - it persists in version 26
            var tmp = self.win.attr("style");
            var ww = parseFloat(self.win.css("width")) + 1;
            self.win.css('width', ww);
            self.synched("chromefix", function () {
              self.win.attr("style", tmp);
            });
          }
  
  
          // Trying a cross-browser implementation - good luck!
  
          self.onAttributeChange = function (e) {
            self.lazyResize(self.isieold ? 250 : 30);
          };
  
          if (opt.enableobserver) {
  
            if ((!self.isie11) && (ClsMutationObserver !== false)) {  // IE11 crashes  #568
              self.observerbody = new ClsMutationObserver(function (mutations) {
                mutations.forEach(function (mut) {
                  if (mut.type == "attributes") {
                    return ($body.hasClass("modal-open") && $body.hasClass("modal-dialog") && !$.contains($('.modal-dialog')[0], self.doc[0])) ? self.hide() : self.show();  // Support for Bootstrap modal; Added check if the nice scroll element is inside a modal
                  }
                });
                if (self.me.clientWidth != self.page.width || self.me.clientHeight != self.page.height) return self.lazyResize(30);
              });
              self.observerbody.observe(_doc.body, {
                childList: true,
                subtree: true,
                characterData: false,
                attributes: true,
                attributeFilter: ['class']
              });
            }
  
            if (!self.ispage && !self.haswrapper) {
  
              var _dom = self.win[0];
  
              // redesigned MutationObserver for Chrome18+/Firefox14+/iOS6+ with support for: remove div, add/remove content
              if (ClsMutationObserver !== false) {
                self.observer = new ClsMutationObserver(function (mutations) {
                  mutations.forEach(self.onAttributeChange);
                });
                self.observer.observe(_dom, {
                  childList: true,
                  characterData: false,
                  attributes: true,
                  subtree: false
                });
                self.observerremover = new ClsMutationObserver(function (mutations) {
                  mutations.forEach(function (mo) {
                    if (mo.removedNodes.length > 0) {
                      for (var dd in mo.removedNodes) {
                        if (!!self && (mo.removedNodes[dd] === _dom)) return self.remove();
                      }
                    }
                  });
                });
                self.observerremover.observe(_dom.parentNode, {
                  childList: true,
                  characterData: false,
                  attributes: false,
                  subtree: false
                });
              } else {
                self.bind(_dom, (cap.isie && !cap.isie9) ? "propertychange" : "DOMAttrModified", self.onAttributeChange);
                if (cap.isie9) _dom.attachEvent("onpropertychange", self.onAttributeChange); //IE9 DOMAttrModified bug
                self.bind(_dom, "DOMNodeRemoved", function (e) {
                  if (e.target === _dom) self.remove();
                });
              }
            }
  
          }
  
          //
  
          if (!self.ispage && opt.boxzoom) self.bind(_win, "resize", self.resizeZoom);
          if (self.istextarea) {
            self.bind(self.win, "keydown", self.lazyResize);
            self.bind(self.win, "mouseup", self.lazyResize);
          }
  
          self.lazyResize(30);
  
        }
  
        if (this.doc[0].nodeName == 'IFRAME') {
          var oniframeload = function () {
            self.iframexd = false;
            var doc;
            try {
              doc = 'contentDocument' in this ? this.contentDocument : this.contentWindow._doc;
              var a = doc.domain;
            } catch (e) {
              self.iframexd = true;
              doc = false;
            }
  
            if (self.iframexd) {
              if ("console" in _win) console.log('NiceScroll error: policy restriced iframe');
              return true; //cross-domain - I can't manage this        
            }
  
            self.forcescreen = true;
  
            if (self.isiframe) {
              self.iframe = {
                "doc": $(doc),
                "html": self.doc.contents().find('html')[0],
                "body": self.doc.contents().find('body')[0]
              };
              self.getContentSize = function () {
                return {
                  w: Math.max(self.iframe.html.scrollWidth, self.iframe.body.scrollWidth),
                  h: Math.max(self.iframe.html.scrollHeight, self.iframe.body.scrollHeight)
                };
              };
              self.docscroll = $(self.iframe.body);
            }
  
            if (!cap.isios && opt.iframeautoresize && !self.isiframe) {
              self.win.scrollTop(0); // reset position
              self.doc.height(""); //reset height to fix browser bug
              var hh = Math.max(doc.getElementsByTagName('html')[0].scrollHeight, doc.body.scrollHeight);
              self.doc.height(hh);
            }
            self.lazyResize(30);
  
            self.css($(self.iframe.body), _scrollyhidden);
  
            if (cap.isios && self.haswrapper) {
              self.css($(doc.body), {
                '-webkit-transform': 'translate3d(0,0,0)'
              }); // avoid iFrame content clipping - thanks to http://blog.derraab.com/2012/04/02/avoid-iframe-content-clipping-with-css-transform-on-ios/
            }
  
            if ('contentWindow' in this) {
              self.bind(this.contentWindow, "scroll", self.onscroll); //IE8 & minor
            } else {
              self.bind(doc, "scroll", self.onscroll);
            }
  
            if (opt.enablemousewheel) {
              self.mousewheel(doc, self.onmousewheel);
            }
  
            if (opt.enablekeyboard) self.bind(doc, (cap.isopera) ? "keypress" : "keydown", self.onkeypress);
  
            if (cap.cantouch) {
              self.bind(doc, "touchstart", self.ontouchstart);
              self.bind(doc, "touchmove", self.ontouchmove);
            }
            else if (opt.emulatetouch) {
              self.bind(doc, "mousedown", self.ontouchstart);
              self.bind(doc, "mousemove", function (e) {
                return self.ontouchmove(e, true);
              });
              if (opt.grabcursorenabled && cap.cursorgrabvalue) self.css($(doc.body), {
                'cursor': cap.cursorgrabvalue
              });
            }
  
            self.bind(doc, "mouseup", self.ontouchend);
  
            if (self.zoom) {
              if (opt.dblclickzoom) self.bind(doc, 'dblclick', self.doZoom);
              if (self.ongesturezoom) self.bind(doc, "gestureend", self.ongesturezoom);
            }
          };
  
          if (this.doc[0].readyState && this.doc[0].readyState === "complete") {
            setTimeout(function () {
              oniframeload.call(self.doc[0], false);
            }, 500);
          }
          self.bind(this.doc, "load", oniframeload);
  
        }
  
      };
  
      this.showCursor = function (py, px) {
        if (self.cursortimeout) {
          clearTimeout(self.cursortimeout);
          self.cursortimeout = 0;
        }
        if (!self.rail) return;
        if (self.autohidedom) {
          self.autohidedom.stop().css({
            opacity: opt.cursoropacitymax
          });
          self.cursoractive = true;
        }
  
        if (!self.rail.drag || self.rail.drag.pt != 1) {
          if (py !== undefined && py !== false) {
            self.scroll.y = (py / self.scrollratio.y) | 0;
          }
          if (px !== undefined) {
            self.scroll.x = (px / self.scrollratio.x) | 0;
          }
        }
  
        self.cursor.css({
          height: self.cursorheight,
          top: self.scroll.y
        });
        if (self.cursorh) {
          var lx = (self.hasreversehr) ? self.scrollvaluemaxw - self.scroll.x : self.scroll.x;
          self.cursorh.css({
            width: self.cursorwidth,
            left: (!self.rail.align && self.rail.visibility) ? lx + self.rail.width : lx
          });
          self.cursoractive = true;
        }
  
        if (self.zoom) self.zoom.stop().css({
          opacity: opt.cursoropacitymax
        });
      };
  
      this.hideCursor = function (tm) {
        if (self.cursortimeout) return;
        if (!self.rail) return;
        if (!self.autohidedom) return;
  
        if (self.hasmousefocus && opt.autohidemode === "leave") return;
        self.cursortimeout = setTimeout(function () {
          if (!self.rail.active || !self.showonmouseevent) {
            self.autohidedom.stop().animate({
              opacity: opt.cursoropacitymin
            });
            if (self.zoom) self.zoom.stop().animate({
              opacity: opt.cursoropacitymin
            });
            self.cursoractive = false;
          }
          self.cursortimeout = 0;
        }, tm || opt.hidecursordelay);
      };
  
      this.noticeCursor = function (tm, py, px) {
        self.showCursor(py, px);
        if (!self.rail.active) self.hideCursor(tm);
      };
  
      this.getContentSize =
        (self.ispage) ?
          function () {
            return {
              w: Math.max(_doc.body.scrollWidth, _doc.documentElement.scrollWidth),
              h: Math.max(_doc.body.scrollHeight, _doc.documentElement.scrollHeight)
            };
          } : (self.haswrapper) ?
            function () {
              return {
                w: self.doc[0].offsetWidth,
                h: self.doc[0].offsetHeight
              };
            } : function () {
              return {
                w: self.docscroll[0].scrollWidth,
                h: self.docscroll[0].scrollHeight
              };
            };
  
      this.onResize = function (e, page) {
  
        if (!self || !self.win) return false;
  
        var premaxh = self.page.maxh,
            premaxw = self.page.maxw,
            previewh = self.view.h,
            previeww = self.view.w;
  
        self.view = {
          w: (self.ispage) ? self.win.width() : self.win[0].clientWidth,
          h: (self.ispage) ? self.win.height() : self.win[0].clientHeight
        };
  
        self.page = (page) ? page : self.getContentSize();
  
        self.page.maxh = Math.max(0, self.page.h - self.view.h);
        self.page.maxw = Math.max(0, self.page.w - self.view.w);
  
        if ((self.page.maxh == premaxh) && (self.page.maxw == premaxw) && (self.view.w == previeww) && (self.view.h == previewh)) {
          // test position        
          if (!self.ispage) {
            var pos = self.win.offset();
            if (self.lastposition) {
              var lst = self.lastposition;
              if ((lst.top == pos.top) && (lst.left == pos.left)) return self; //nothing to do            
            }
            self.lastposition = pos;
          } else {
            return self; //nothing to do
          }
        }
  
        if (self.page.maxh === 0) {
          self.hideRail();
          self.scrollvaluemax = 0;
          self.scroll.y = 0;
          self.scrollratio.y = 0;
          self.cursorheight = 0;
          self.setScrollTop(0);
          if (self.rail) self.rail.scrollable = false;
        } else {
          self.page.maxh -= (opt.railpadding.top + opt.railpadding.bottom);
          self.rail.scrollable = true;
        }
  
        if (self.page.maxw === 0) {
          self.hideRailHr();
          self.scrollvaluemaxw = 0;
          self.scroll.x = 0;
          self.scrollratio.x = 0;
          self.cursorwidth = 0;
          self.setScrollLeft(0);
          if (self.railh) {
            self.railh.scrollable = false;
          }
        } else {
          self.page.maxw -= (opt.railpadding.left + opt.railpadding.right);
          if (self.railh) self.railh.scrollable = (opt.horizrailenabled);
        }
  
        self.railslocked = (self.locked) || ((self.page.maxh === 0) && (self.page.maxw === 0));
        if (self.railslocked) {
          if (!self.ispage) self.updateScrollBar(self.view);
          return false;
        }
  
        if (!self.hidden) {
          if (!self.rail.visibility) self.showRail();
          if (self.railh && !self.railh.visibility) self.showRailHr();
        }
  
        if (self.istextarea && self.win.css('resize') && self.win.css('resize') != 'none') self.view.h -= 20;
  
        self.cursorheight = Math.min(self.view.h, Math.round(self.view.h * (self.view.h / self.page.h)));
        self.cursorheight = (opt.cursorfixedheight) ? opt.cursorfixedheight : Math.max(opt.cursorminheight, self.cursorheight);
  
        self.cursorwidth = Math.min(self.view.w, Math.round(self.view.w * (self.view.w / self.page.w)));
        self.cursorwidth = (opt.cursorfixedheight) ? opt.cursorfixedheight : Math.max(opt.cursorminheight, self.cursorwidth);
  
        self.scrollvaluemax = self.view.h - self.cursorheight - (opt.railpadding.top + opt.railpadding.bottom);
        if (!self.hasborderbox) self.scrollvaluemax -= self.cursor[0].offsetHeight - self.cursor[0].clientHeight;
  
        if (self.railh) {
          self.railh.width = (self.page.maxh > 0) ? (self.view.w - self.rail.width) : self.view.w;
          self.scrollvaluemaxw = self.railh.width - self.cursorwidth - (opt.railpadding.left + opt.railpadding.right);
        }
  
        if (!self.ispage) self.updateScrollBar(self.view);
  
        self.scrollratio = {
          x: (self.page.maxw / self.scrollvaluemaxw),
          y: (self.page.maxh / self.scrollvaluemax)
        };
  
        var sy = self.getScrollTop();
        if (sy > self.page.maxh) {
          self.doScrollTop(self.page.maxh);
        } else {
          self.scroll.y = (self.getScrollTop() / self.scrollratio.y) | 0;
          self.scroll.x = (self.getScrollLeft() / self.scrollratio.x) | 0;
          if (self.cursoractive) self.noticeCursor();
        }
  
        if (self.scroll.y && (self.getScrollTop() === 0)) self.doScrollTo((self.scroll.y * self.scrollratio.y)|0);
  
        return self;
      };
  
      this.resize = self.onResize;
  
      var hlazyresize = 0;
  
      this.onscreenresize = function(e) {
        clearTimeout(hlazyresize);
  
        var hiderails = (!self.ispage && !self.haswrapper);
        if (hiderails) self.hideRails();
  
        hlazyresize = setTimeout(function () {
          if (self) {
            if (hiderails) self.showRails();
            self.resize();
          }
          hlazyresize=0;
        }, 120);
      };
  
      this.lazyResize = function (tm) { // event debounce
  
        clearTimeout(hlazyresize);
  
        tm = isNaN(tm) ? 240 : tm;
  
        hlazyresize = setTimeout(function () {
          self && self.resize();
          hlazyresize=0;
        }, tm);
  
        return self;
  
      };
  
      // derived by MDN https://developer.mozilla.org/en-US/docs/DOM/Mozilla_event_reference/wheel
      function _modernWheelEvent(dom, name, fn, bubble) {
        self._bind(dom, name, function (e) {
          e = e || _win.event;
          var event = {
            original: e,
            target: e.target || e.srcElement,
            type: "wheel",
            deltaMode: e.type == "MozMousePixelScroll" ? 0 : 1,
            deltaX: 0,
            deltaZ: 0,
            preventDefault: function () {
              e.preventDefault ? e.preventDefault() : e.returnValue = false;
              return false;
            },
            stopImmediatePropagation: function () {
              (e.stopImmediatePropagation) ? e.stopImmediatePropagation() : e.cancelBubble = true;
            }
          };
  
          if (name == "mousewheel") {
            e.wheelDeltaX && (event.deltaX = -1 / 40 * e.wheelDeltaX);
            e.wheelDeltaY && (event.deltaY = -1 / 40 * e.wheelDeltaY);
            !event.deltaY && !event.deltaX && (event.deltaY = -1 / 40 * e.wheelDelta);
          } else {
            event.deltaY = e.detail;
          }
  
          return fn.call(dom, event);
        }, bubble);
      }
  
  
  
      this.jqbind = function (dom, name, fn) { // use jquery bind for non-native events (mouseenter/mouseleave)
        self.events.push({
          e: dom,
          n: name,
          f: fn,
          q: true
        });
        // $(dom).on(name, fn);
      };
  
      this.mousewheel = function (dom, fn, bubble) { // bind mousewheel
        var el = ("jquery" in dom) ? dom[0] : dom;
        if ("onwheel" in _doc.createElement("div")) { // Modern browsers support "wheel"
          self._bind(el, "wheel", fn, bubble || false);
        } else {
          var wname = (_doc.onmousewheel !== undefined) ? "mousewheel" : "DOMMouseScroll"; // older Webkit+IE support or older Firefox          
          _modernWheelEvent(el, wname, fn, bubble || false);
          if (wname == "DOMMouseScroll") _modernWheelEvent(el, "MozMousePixelScroll", fn, bubble || false); // Firefox legacy
        }
      };
  
      var passiveSupported = false;
  
      if (cap.haseventlistener) {  // W3C standard event model
  
        // thanks to https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
        try { var options = Object.defineProperty({}, "passive", { get: function () { passiveSupported = !0; } }); _win.addEventListener("test", null, options); } catch (err) { }
  
        this.stopPropagation = function (e) {
          if (!e) return false;
          e = (e.original) ? e.original : e;
          e.stopPropagation();
          return false;
        };
  
        this.cancelEvent = function(e) {
          if (e.cancelable) e.preventDefault();
          e.stopImmediatePropagation();
          if (e.preventManipulation) e.preventManipulation();  // IE10+
          return false;
        };      
  
      } else {
  
        // inspired from https://gist.github.com/jonathantneal/2415137      
  
        Event.prototype.preventDefault = function () {
          this.returnValue = false;
        };
  
        Event.prototype.stopPropagation = function () {
          this.cancelBubble = true;
        };
  
        _win.constructor.prototype.addEventListener = _doc.constructor.prototype.addEventListener = Element.prototype.addEventListener = function (type, listener, useCapture) {
          this.attachEvent("on" + type, listener);
        };
        _win.constructor.prototype.removeEventListener = _doc.constructor.prototype.removeEventListener = Element.prototype.removeEventListener = function (type, listener, useCapture) {
          this.detachEvent("on" + type, listener);
        };
  
        // Thanks to http://www.switchonthecode.com !!
        this.cancelEvent = function (e) {
          e = e || _win.event;
          if (e) {          
            e.cancelBubble = true;
            e.cancel = true;
            e.returnValue = false;
          }  
          return false;
        };
  
        this.stopPropagation = function (e) {
          e = e || _win.event;
          if (e) e.cancelBubble = true;
          return false;
        };
  
      }
  
      this.delegate = function (dom, name, fn, bubble, active) {
  
        var de = delegatevents[name] || false;
  
        if (!de) {
  
          de = {
            a: [],
            l: [],
            f: function (e) {
              var lst = de.l, l = lst.length - 1;
              var r = false;
              for (var a = l; a >= 0; a--) {
                r = lst[a].call(e.target, e);
                if (r === false) return false;
              }
              return r;
            }
          };
  
          self.bind(dom, name, de.f, bubble, active);
  
          delegatevents[name] = de;
  
        }
  
        if (self.ispage) {
          de.a = [self.id].concat(de.a);
          de.l = [fn].concat(de.l);
        } else {
          de.a.push(self.id);
          de.l.push(fn);        
        }
  
      };
  
      this.undelegate = function (dom, name, fn, bubble, active) {
        var de = delegatevents[name]||false;
        if (de&&de.l) {  // quick fix #683
          for (var a=0,l=de.l.length;a<l;a++) {
            if (de.a[a] === self.id) {
              de.a.splice(a);
              de.l.splice(a);
              if (de.a.length===0) {
                self._unbind(dom,name,de.l.f);
                delegatevents[name] = null;
              }
            }
          }
        }
      };
  
      this.bind = function (dom, name, fn, bubble, active) {
        var el = ("jquery" in dom) ? dom[0] : dom;
        self._bind(el, name, fn, bubble || false, active || false);
      };
  
      this._bind = function (el, name, fn, bubble, active) { // primitive bind
  
        self.events.push({
          e: el,
          n: name,
          f: fn,
          b: bubble,
          q: false
        });
  
        (passiveSupported && active) ? el.addEventListener(name, fn, { passive: false, capture: bubble }) : el.addEventListener(name, fn, bubble || false);
      };
  
      this._unbind = function (el, name, fn, bub) { // primitive unbind
        if (delegatevents[name]) self.undelegate(el, name, fn, bub);
        else el.removeEventListener(name, fn, bub);
      };
  
      this.unbindAll = function () {
        for (var a = 0; a < self.events.length; a++) {
          var r = self.events[a];
          (r.q) ? r.e.unbind(r.n, r.f) : self._unbind(r.e, r.n, r.f, r.b);
        }
      };
  
      this.showRails = function () {
        return self.showRail().showRailHr();
      };
  
      this.showRail = function () {
        if ((self.page.maxh !== 0) && (self.ispage || self.win.css('display') != 'none')) {
          //self.visibility = true;
          self.rail.visibility = true;
          self.rail.css('display', 'block');
        }
        return self;
      };
  
      this.showRailHr = function () {
        if (self.railh) {
          if ((self.page.maxw !== 0) && (self.ispage || self.win.css('display') != 'none')) {
            self.railh.visibility = true;
            self.railh.css('display', 'block');
          }
        }
        return self;
      };
  
      this.hideRails = function () {
        return self.hideRail().hideRailHr();
      };
  
      this.hideRail = function () {
        //self.visibility = false;
        self.rail.visibility = false;
        self.rail.css('display', 'none');
        return self;
      };
  
      this.hideRailHr = function () {
        if (self.railh) {
          self.railh.visibility = false;
          self.railh.css('display', 'none');
        }
        return self;
      };
  
      this.show = function () {
        self.hidden = false;
        self.railslocked = false;
        return self.showRails();
      };
  
      this.hide = function () {
        self.hidden = true;
        self.railslocked = true;
        return self.hideRails();
      };
  
      this.toggle = function () {
        return (self.hidden) ? self.show() : self.hide();
      };
  
      this.remove = function () {
        self.stop();
        if (self.cursortimeout) clearTimeout(self.cursortimeout);
        for (var n in self.delaylist) if (self.delaylist[n]) clearAnimationFrame(self.delaylist[n].h);
        self.doZoomOut();
        self.unbindAll();
  
        if (cap.isie9) self.win[0].detachEvent("onpropertychange", self.onAttributeChange); //IE9 DOMAttrModified bug
  
        if (self.observer !== false) self.observer.disconnect();
        if (self.observerremover !== false) self.observerremover.disconnect();
        if (self.observerbody !== false) self.observerbody.disconnect();
  
        self.events = null;
  
        if (self.cursor) {
          self.cursor.remove();
        }
        if (self.cursorh) {
          self.cursorh.remove();
        }
        if (self.rail) {
          self.rail.remove();
        }
        if (self.railh) {
          self.railh.remove();
        }
        if (self.zoom) {
          self.zoom.remove();
        }
        for (var a = 0; a < self.saved.css.length; a++) {
          var d = self.saved.css[a];
          d[0].css(d[1], (d[2] === undefined) ? '' : d[2]);
        }
        self.saved = false;
        self.me.data('__nicescroll', ''); //erase all traces
  
        // memory leak fixed by GianlucaGuarini - thanks a lot!
        // remove the current nicescroll from the $.nicescroll array & normalize array
        var lst = $.nicescroll;
        lst.each(function (i) {
          if (!this) return;
          if (this.id === self.id) {
            delete lst[i];
            for (var b = ++i; b < lst.length; b++ , i++) lst[i] = lst[b];
            lst.length--;
            if (lst.length) delete lst[lst.length];
          }
        });
  
        for (var i in self) {
          self[i] = null;
          delete self[i];
        }
  
        self = null;
  
      };
  
      this.scrollstart = function (fn) {
        this.onscrollstart = fn;
        return self;
      };
      this.scrollend = function (fn) {
        this.onscrollend = fn;
        return self;
      };
      this.scrollcancel = function (fn) {
        this.onscrollcancel = fn;
        return self;
      };
  
      this.zoomin = function (fn) {
        this.onzoomin = fn;
        return self;
      };
      this.zoomout = function (fn) {
        this.onzoomout = fn;
        return self;
      };
  
      this.isScrollable = function (e) {
        var dom = (e.target) ? e.target : e;
        if (dom.nodeName == 'OPTION') return true;
        while (dom && (dom.nodeType == 1) && (dom !== this.me[0]) && !(/^BODY|HTML/.test(dom.nodeName))) {
          var dd = $(dom);
          var ov = dd.css('overflowY') || dd.css('overflowX') || dd.css('overflow') || '';
          if (/scroll|auto/.test(ov)) return (dom.clientHeight != dom.scrollHeight);
          dom = (dom.parentNode) ? dom.parentNode : false;
        }
        return false;
      };
  
      this.getViewport = function (me) {
        var dom = (me && me.parentNode) ? me.parentNode : false;
        while (dom && (dom.nodeType == 1) && !(/^BODY|HTML/.test(dom.nodeName))) {
          var dd = $(dom);
          if (/fixed|absolute/.test(dd.css("position"))) return dd;
          var ov = dd.css('overflowY') || dd.css('overflowX') || dd.css('overflow') || '';
          if ((/scroll|auto/.test(ov)) && (dom.clientHeight != dom.scrollHeight)) return dd;
          if (dd.getNiceScroll().length > 0) return dd;
          dom = (dom.parentNode) ? dom.parentNode : false;
        }
        return false;
      };
  
      this.triggerScrollStart = function (cx, cy, rx, ry, ms) {
  
        if (self.onscrollstart) {
          var info = {
            type: "scrollstart",
            current: {
              x: cx,
              y: cy
            },
            request: {
              x: rx,
              y: ry
            },
            end: {
              x: self.newscrollx,
              y: self.newscrolly
            },
            speed: ms
          };
          self.onscrollstart.call(self, info);
        }
  
      };
  
      this.triggerScrollEnd = function () {
        if (self.onscrollend) {
  
          var px = self.getScrollLeft();
          var py = self.getScrollTop();
  
          var info = {
            type: "scrollend",
            current: {
              x: px,
              y: py
            },
            end: {
              x: px,
              y: py
            }
          };
  
          self.onscrollend.call(self, info);
  
        }
  
      };
  
      var scrolldiry = 0, scrolldirx = 0, scrolltmr = 0, scrollspd = 1;
  
      function doScrollRelative(px, py, chkscroll, iswheel) {
  
        if (!self.scrollrunning) {
          self.newscrolly = self.getScrollTop();
          self.newscrollx = self.getScrollLeft();
          scrolltmr = now();
        }
  
        var gap = (now() - scrolltmr);
        scrolltmr = now();
  
        if (gap > 350) {
          scrollspd = 1;
        } else {
          scrollspd += (2 - scrollspd) / 10;
        }
  
        px = px * scrollspd | 0;
        py = py * scrollspd | 0;
  
        if (px) {
  
          if (iswheel) { // mouse-only
            if (px < 0) {  // fix apple magic mouse swipe back/forward
              if (self.getScrollLeft() >= self.page.maxw) return true;
            } else {
              if (self.getScrollLeft() <= 0) return true;
            }
          }
  
          var dx = px > 0 ? 1 : -1;
  
          if (scrolldirx !== dx) {
            if (self.scrollmom) self.scrollmom.stop();
            self.newscrollx = self.getScrollLeft();
            scrolldirx = dx;
          }
  
          self.lastdeltax -= px;
  
        }
  
        if (py) {
  
          var chk = (function () {
            var top = self.getScrollTop();
            if (py < 0) {
              if (top >= self.page.maxh) return true;
            } else {
              if (top <= 0) return true;
            }
          })();
  
          if (chk) {
            if (opt.nativeparentscrolling && chkscroll && !self.ispage && !self.zoomactive) return true;
            var ny = self.view.h >> 1;
            if (self.newscrolly < -ny) { self.newscrolly = -ny; py = -1; }
            else if (self.newscrolly > self.page.maxh + ny) { self.newscrolly = self.page.maxh + ny; py = 1; }
            else py = 0;
          }
  
          var dy = py > 0 ? 1 : -1;
  
          if (scrolldiry !== dy) {
            if (self.scrollmom) self.scrollmom.stop();
            self.newscrolly = self.getScrollTop();
            scrolldiry = dy;
          }
  
          self.lastdeltay -= py;
  
        }
  
        if (py || px) {
          self.synched("relativexy", function () {
  
            var dty = self.lastdeltay + self.newscrolly;
            self.lastdeltay = 0;
  
            var dtx = self.lastdeltax + self.newscrollx;
            self.lastdeltax = 0;
  
            if (!self.rail.drag) self.doScrollPos(dtx, dty);
  
          });
        }
  
      }
  
      var hasparentscrollingphase = false;
  
      function execScrollWheel(e, hr, chkscroll) {
        var px, py;
  
        if (!chkscroll && hasparentscrollingphase) return true;
  
        if (e.deltaMode === 0) { // PIXEL
          px = -(e.deltaX * (opt.mousescrollstep / (18 * 3))) | 0;
          py = -(e.deltaY * (opt.mousescrollstep / (18 * 3))) | 0;
        } else if (e.deltaMode === 1) { // LINE
          px = -(e.deltaX * opt.mousescrollstep * 50 / 80) | 0;
          py = -(e.deltaY * opt.mousescrollstep * 50 / 80) | 0;
        }
  
        if (hr && opt.oneaxismousemode && (px === 0) && py) { // classic vertical-only mousewheel + browser with x/y support 
          px = py;
          py = 0;
  
          if (chkscroll) {
            var hrend = (px < 0) ? (self.getScrollLeft() >= self.page.maxw) : (self.getScrollLeft() <= 0);
            if (hrend) {  // preserve vertical scrolling
              py = px;
              px = 0;
            }
          }
  
        }
  
        // invert horizontal direction for rtl mode
        if (self.isrtlmode) px = -px;
  
        var chk = doScrollRelative(px, py, chkscroll, true);
  
        if (chk) {
          if (chkscroll) hasparentscrollingphase = true;
        } else {
          hasparentscrollingphase = false;
          e.stopImmediatePropagation();
          return e.preventDefault();
        }
  
      }
  
      this.onmousewheel = function (e) {
        if (self.wheelprevented||self.locked) return false;
        if (self.railslocked) {
          self.debounced("checkunlock", self.resize, 250);
          return false;
        }
        if (self.rail.drag) return self.cancelEvent(e);
  
        if (opt.oneaxismousemode === "auto" && e.deltaX !== 0) opt.oneaxismousemode = false; // check two-axis mouse support (not very elegant)
  
        if (opt.oneaxismousemode && e.deltaX === 0) {
          if (!self.rail.scrollable) {
            if (self.railh && self.railh.scrollable) {
              return self.onmousewheelhr(e);
            } else {
              return true;
            }
          }
        }
  
        var nw = now();
        var chk = false;
        if (opt.preservenativescrolling && ((self.checkarea + 600) < nw)) {
          self.nativescrollingarea = self.isScrollable(e);
          chk = true;
        }
        self.checkarea = nw;
        if (self.nativescrollingarea) return true; // this isn't my business
        var ret = execScrollWheel(e, false, chk);
        if (ret) self.checkarea = 0;
        return ret;
      };
  
      this.onmousewheelhr = function (e) {
        if (self.wheelprevented) return;
        if (self.railslocked || !self.railh.scrollable) return true;
        if (self.rail.drag) return self.cancelEvent(e);
  
        var nw = now();
        var chk = false;
        if (opt.preservenativescrolling && ((self.checkarea + 600) < nw)) {
          self.nativescrollingarea = self.isScrollable(e);
          chk = true;
        }
        self.checkarea = nw;
        if (self.nativescrollingarea) return true; // this is not my business
        if (self.railslocked) return self.cancelEvent(e);
  
        return execScrollWheel(e, true, chk);
      };
  
      this.stop = function () {
        self.cancelScroll();
        if (self.scrollmon) self.scrollmon.stop();
        self.cursorfreezed = false;
        self.scroll.y = Math.round(self.getScrollTop() * (1 / self.scrollratio.y));
        self.noticeCursor();
        return self;
      };
  
      this.getTransitionSpeed = function (dif) {
  
        return 80 + (dif / 72) * opt.scrollspeed |0;
  
      };
  
      if (!opt.smoothscroll) {
        this.doScrollLeft = function (x, spd) { //direct
          var y = self.getScrollTop();
          self.doScrollPos(x, y, spd);
        };
        this.doScrollTop = function (y, spd) { //direct
          var x = self.getScrollLeft();
          self.doScrollPos(x, y, spd);
        };
        this.doScrollPos = function (x, y, spd) { //direct
          var nx = (x > self.page.maxw) ? self.page.maxw : x;
          if (nx < 0) nx = 0;
          var ny = (y > self.page.maxh) ? self.page.maxh : y;
          if (ny < 0) ny = 0;
          self.synched('scroll', function () {
            self.setScrollTop(ny);
            self.setScrollLeft(nx);
          });
        };
        this.cancelScroll = function () { }; // direct
  
      } else if (self.ishwscroll && cap.hastransition && opt.usetransition && !!opt.smoothscroll) {
  
        var lasttransitionstyle = '';
  
        this.resetTransition = function () {
          lasttransitionstyle = '';
          self.doc.css(cap.prefixstyle + 'transition-duration', '0ms');
        };
  
        this.prepareTransition = function (dif, istime) {
          var ex = (istime) ? dif : self.getTransitionSpeed(dif);
          var trans = ex + 'ms';
          if (lasttransitionstyle !== trans) {
            lasttransitionstyle = trans;
            self.doc.css(cap.prefixstyle + 'transition-duration', trans);
          }
          return ex;
        };
  
        this.doScrollLeft = function (x, spd) { //trans
          var y = (self.scrollrunning) ? self.newscrolly : self.getScrollTop();
          self.doScrollPos(x, y, spd);
        };
  
        this.doScrollTop = function (y, spd) { //trans
          var x = (self.scrollrunning) ? self.newscrollx : self.getScrollLeft();
          self.doScrollPos(x, y, spd);
        };
  
        this.cursorupdate = {
          running: false,
          start: function () {
            var m = this;
  
            if (m.running) return;
            m.running = true;
  
            var loop = function () {
              if (m.running) setAnimationFrame(loop);
              self.showCursor(self.getScrollTop(), self.getScrollLeft());
              self.notifyScrollEvent(self.win[0]);
            };
  
            setAnimationFrame(loop);
          },
          stop: function () {
            this.running = false;
          }
        };
  
        this.doScrollPos = function (x, y, spd) { //trans
  
          var py = self.getScrollTop();
          var px = self.getScrollLeft();
  
          if (((self.newscrolly - py) * (y - py) < 0) || ((self.newscrollx - px) * (x - px) < 0)) self.cancelScroll(); //inverted movement detection      
  
          if (!opt.bouncescroll) {
            if (y < 0) y = 0;
            else if (y > self.page.maxh) y = self.page.maxh;
            if (x < 0) x = 0;
            else if (x > self.page.maxw) x = self.page.maxw;
          } else {
            if (y < 0) y = y / 2 | 0;
            else if (y > self.page.maxh) y = self.page.maxh + (y - self.page.maxh) / 2 | 0;
            if (x < 0) x = x / 2 | 0;
            else if (x > self.page.maxw) x = self.page.maxw + (x - self.page.maxw) / 2 | 0;
          }
  
          if (self.scrollrunning && x == self.newscrollx && y == self.newscrolly) return false;
  
          self.newscrolly = y;
          self.newscrollx = x;
  
          var top = self.getScrollTop();
          var lft = self.getScrollLeft();
  
          var dst = {};
          dst.x = x - lft;
          dst.y = y - top;
  
          var dd = Math.sqrt((dst.x * dst.x) + (dst.y * dst.y)) | 0;
  
          var ms = self.prepareTransition(dd);
  
          if (!self.scrollrunning) {
            self.scrollrunning = true;
            self.triggerScrollStart(lft, top, x, y, ms);
            self.cursorupdate.start();
          }
  
          self.scrollendtrapped = true;
  
          if (!cap.transitionend) {
            if (self.scrollendtrapped) clearTimeout(self.scrollendtrapped);
            self.scrollendtrapped = setTimeout(self.onScrollTransitionEnd, ms); // simulate transitionend event
          }
  
          self.setScrollTop(self.newscrolly);
          self.setScrollLeft(self.newscrollx);
  
        };
  
        this.cancelScroll = function () {
          if (!self.scrollendtrapped) return true;
          var py = self.getScrollTop();
          var px = self.getScrollLeft();
          self.scrollrunning = false;
          if (!cap.transitionend) clearTimeout(cap.transitionend);
          self.scrollendtrapped = false;
          self.resetTransition();
          self.setScrollTop(py); // fire event onscroll
          if (self.railh) self.setScrollLeft(px);
          if (self.timerscroll && self.timerscroll.tm) clearInterval(self.timerscroll.tm);
          self.timerscroll = false;
  
          self.cursorfreezed = false;
  
          self.cursorupdate.stop();
          self.showCursor(py, px);
          return self;
        };
  
        this.onScrollTransitionEnd = function () {
  
          if (!self.scrollendtrapped) return;
  
          var py = self.getScrollTop();
          var px = self.getScrollLeft();
  
          if (py < 0) py = 0;
          else if (py > self.page.maxh) py = self.page.maxh;
          if (px < 0) px = 0;
          else if (px > self.page.maxw) px = self.page.maxw;
          if ((py != self.newscrolly) || (px != self.newscrollx)) return self.doScrollPos(px, py, opt.snapbackspeed);
  
          if (self.scrollrunning) self.triggerScrollEnd();
          self.scrollrunning = false;
  
          self.scrollendtrapped = false;
          self.resetTransition();
          self.timerscroll = false;
          self.setScrollTop(py); // fire event onscroll        
          if (self.railh) self.setScrollLeft(px); // fire event onscroll left
  
          self.cursorupdate.stop();
          self.noticeCursor(false, py, px);
  
          self.cursorfreezed = false;
  
        };
  
      } else {
  
        this.doScrollLeft = function (x, spd) { //no-trans
          var y = (self.scrollrunning) ? self.newscrolly : self.getScrollTop();
          self.doScrollPos(x, y, spd);
        };
  
        this.doScrollTop = function (y, spd) { //no-trans
          var x = (self.scrollrunning) ? self.newscrollx : self.getScrollLeft();
          self.doScrollPos(x, y, spd);
        };
  
        this.doScrollPos = function (x, y, spd) { //no-trans
  
          var py = self.getScrollTop();
          var px = self.getScrollLeft();
  
          if (((self.newscrolly - py) * (y - py) < 0) || ((self.newscrollx - px) * (x - px) < 0)) self.cancelScroll(); //inverted movement detection
  
          var clipped = false;
  
          if (!self.bouncescroll || !self.rail.visibility) {
            if (y < 0) {
              y = 0;
              clipped = true;
            } else if (y > self.page.maxh) {
              y = self.page.maxh;
              clipped = true;
            }
          }
          if (!self.bouncescroll || !self.railh.visibility) {
            if (x < 0) {
              x = 0;
              clipped = true;
            } else if (x > self.page.maxw) {
              x = self.page.maxw;
              clipped = true;
            }
          }
  
          if (self.scrollrunning && (self.newscrolly === y) && (self.newscrollx === x)) return true;
  
          self.newscrolly = y;
          self.newscrollx = x;
  
          self.dst = {};
          self.dst.x = x - px;
          self.dst.y = y - py;
          self.dst.px = px;
          self.dst.py = py;
  
          var dd = Math.sqrt((self.dst.x * self.dst.x) + (self.dst.y * self.dst.y)) | 0;
          var ms = self.getTransitionSpeed(dd);
  
          self.bzscroll = {};
  
          var p3 = (clipped) ? 1 : 0.58;
          self.bzscroll.x = new BezierClass(px, self.newscrollx, ms, 0, 0, p3, 1);
          self.bzscroll.y = new BezierClass(py, self.newscrolly, ms, 0, 0, p3, 1);
  
          var loopid = now();
  
          var loop = function () {
  
            if (!self.scrollrunning) return;
            var x = self.bzscroll.y.getPos();
  
            self.setScrollLeft(self.bzscroll.x.getNow());
            self.setScrollTop(self.bzscroll.y.getNow());
  
            if (x <= 1) {
              self.timer = setAnimationFrame(loop);
            } else {
              self.scrollrunning = false;
              self.timer = 0;
              self.triggerScrollEnd();
            }
  
          };
  
          if (!self.scrollrunning) {
            self.triggerScrollStart(px, py, x, y, ms);
            self.scrollrunning = true;
            self.timer = setAnimationFrame(loop);
          }
  
        };
  
        this.cancelScroll = function () {
          if (self.timer) clearAnimationFrame(self.timer);
          self.timer = 0;
          self.bzscroll = false;
          self.scrollrunning = false;
          return self;
        };
  
      }
  
      this.doScrollBy = function (stp, relative) {
        doScrollRelative(0, stp);
      };
  
      this.doScrollLeftBy = function (stp, relative) {
        doScrollRelative(stp, 0);
      };
  
      this.doScrollTo = function (pos, relative) {
        var ny = (relative) ? Math.round(pos * self.scrollratio.y) : pos;
        if (ny < 0) ny = 0;
        else if (ny > self.page.maxh) ny = self.page.maxh;
        self.cursorfreezed = false;
        self.doScrollTop(pos);
      };
  
      this.checkContentSize = function () {
        var pg = self.getContentSize();
        if ((pg.h != self.page.h) || (pg.w != self.page.w)) self.resize(false, pg);
      };
  
      self.onscroll = function (e) {
        if (self.rail.drag) return;
        if (!self.cursorfreezed) {
          self.synched('scroll', function () {
            self.scroll.y = Math.round(self.getScrollTop() / self.scrollratio.y);
            if (self.railh) self.scroll.x = Math.round(self.getScrollLeft() / self.scrollratio.x);
            self.noticeCursor();
          });
        }
      };
      self.bind(self.docscroll, "scroll", self.onscroll);
  
      this.doZoomIn = function (e) {
        if (self.zoomactive) return;
        self.zoomactive = true;
  
        self.zoomrestore = {
          style: {}
        };
        var lst = ['position', 'top', 'left', 'zIndex', 'backgroundColor', 'marginTop', 'marginBottom', 'marginLeft', 'marginRight'];
        var win = self.win[0].style;
        for (var a in lst) {
          var pp = lst[a];
          self.zoomrestore.style[pp] = (win[pp] !== undefined) ? win[pp] : '';
        }
  
        self.zoomrestore.style.width = self.win.css('width');
        self.zoomrestore.style.height = self.win.css('height');
  
        self.zoomrestore.padding = {
          w: self.win.outerWidth() - self.win.width(),
          h: self.win.outerHeight() - self.win.height()
        };
  
        if (cap.isios4) {
          self.zoomrestore.scrollTop = $window.scrollTop();
          $window.scrollTop(0);
        }
  
        self.win.css({
          position: (cap.isios4) ? "absolute" : "fixed",
          top: 0,
          left: 0,
          zIndex: globalmaxzindex + 100,
          margin: 0
        });
        var bkg = self.win.css("backgroundColor");
        if ("" === bkg || /transparent|rgba\(0, 0, 0, 0\)|rgba\(0,0,0,0\)/.test(bkg)) self.win.css("backgroundColor", "#fff");
        self.rail.css({
          zIndex: globalmaxzindex + 101
        });
        self.zoom.css({
          zIndex: globalmaxzindex + 102
        });
        self.zoom.css('backgroundPosition', '0 -18px');
        self.resizeZoom();
  
        if (self.onzoomin) self.onzoomin.call(self);
  
        return self.cancelEvent(e);
      };
  
      this.doZoomOut = function (e) {
        if (!self.zoomactive) return;
        self.zoomactive = false;
  
        self.win.css("margin", "");
        self.win.css(self.zoomrestore.style);
  
        if (cap.isios4) {
          $window.scrollTop(self.zoomrestore.scrollTop);
        }
  
        self.rail.css({
          "z-index": self.zindex
        });
        self.zoom.css({
          "z-index": self.zindex
        });
        self.zoomrestore = false;
        self.zoom.css('backgroundPosition', '0 0');
        self.onResize();
  
        if (self.onzoomout) self.onzoomout.call(self);
  
        return self.cancelEvent(e);
      };
  
      this.doZoom = function (e) {
        return (self.zoomactive) ? self.doZoomOut(e) : self.doZoomIn(e);
      };
  
      this.resizeZoom = function () {
        if (!self.zoomactive) return;
  
        var py = self.getScrollTop(); //preserve scrolling position
        self.win.css({
          width: $window.width() - self.zoomrestore.padding.w + "px",
          height: $window.height() - self.zoomrestore.padding.h + "px"
        });
        self.onResize();
  
        self.setScrollTop(Math.min(self.page.maxh, py));
      };
  
      this.init();
  
      $.nicescroll.push(this);
  
    };
  
    // Inspired by the work of Kin Blas
    // http://webpro.host.adobe.com/people/jblas/momentum/includes/jquery.momentum.0.7.js  
    var ScrollMomentumClass2D = function (nc) {
      var self = this;
      this.nc = nc;
  
      this.lastx = 0;
      this.lasty = 0;
      this.speedx = 0;
      this.speedy = 0;
      this.lasttime = 0;
      this.steptime = 0;
      this.snapx = false;
      this.snapy = false;
      this.demulx = 0;
      this.demuly = 0;
  
      this.lastscrollx = -1;
      this.lastscrolly = -1;
  
      this.chkx = 0;
      this.chky = 0;
  
      this.timer = 0;
  
      this.reset = function (px, py) {
        self.stop();
        self.steptime = 0;
        self.lasttime = now();
        self.speedx = 0;
        self.speedy = 0;
        self.lastx = px;
        self.lasty = py;
        self.lastscrollx = -1;
        self.lastscrolly = -1;
      };
  
      this.update = function (px, py) {
        var tm = now();
        self.steptime = tm - self.lasttime;
        self.lasttime = tm;
        var dy = py - self.lasty;
        var dx = px - self.lastx;
        var sy = self.nc.getScrollTop();
        var sx = self.nc.getScrollLeft();
        var newy = sy + dy;
        var newx = sx + dx;
        self.snapx = (newx < 0) || (newx > self.nc.page.maxw);
        self.snapy = (newy < 0) || (newy > self.nc.page.maxh);
        self.speedx = dx;
        self.speedy = dy;
        self.lastx = px;
        self.lasty = py;
      };
  
      this.stop = function () {
        self.nc.unsynched("domomentum2d");
        if (self.timer) clearTimeout(self.timer);
        self.timer = 0;
        self.lastscrollx = -1;
        self.lastscrolly = -1;
      };
  
      this.doSnapy = function (nx, ny) {
        var snap = false;
  
        if (ny < 0) {
          ny = 0;
          snap = true;
        } else if (ny > self.nc.page.maxh) {
          ny = self.nc.page.maxh;
          snap = true;
        }
  
        if (nx < 0) {
          nx = 0;
          snap = true;
        } else if (nx > self.nc.page.maxw) {
          nx = self.nc.page.maxw;
          snap = true;
        }
  
        (snap) ? self.nc.doScrollPos(nx, ny, self.nc.opt.snapbackspeed) : self.nc.triggerScrollEnd();
      };
  
      this.doMomentum = function (gp) {
        var t = now();
        var l = (gp) ? t + gp : self.lasttime;
  
        var sl = self.nc.getScrollLeft();
        var st = self.nc.getScrollTop();
  
        var pageh = self.nc.page.maxh;
        var pagew = self.nc.page.maxw;
  
        self.speedx = (pagew > 0) ? Math.min(60, self.speedx) : 0;
        self.speedy = (pageh > 0) ? Math.min(60, self.speedy) : 0;
  
        var chk = l && (t - l) <= 60;
  
        if ((st < 0) || (st > pageh) || (sl < 0) || (sl > pagew)) chk = false;
  
        var sy = (self.speedy && chk) ? self.speedy : false;
        var sx = (self.speedx && chk) ? self.speedx : false;
  
        if (sy || sx) {
          var tm = Math.max(16, self.steptime); //timeout granularity
  
          if (tm > 50) { // do smooth
            var xm = tm / 50;
            self.speedx *= xm;
            self.speedy *= xm;
            tm = 50;
          }
  
          self.demulxy = 0;
  
          self.lastscrollx = self.nc.getScrollLeft();
          self.chkx = self.lastscrollx;
          self.lastscrolly = self.nc.getScrollTop();
          self.chky = self.lastscrolly;
  
          var nx = self.lastscrollx;
          var ny = self.lastscrolly;
  
          var onscroll = function () {
            var df = ((now() - t) > 600) ? 0.04 : 0.02;
  
            if (self.speedx) {
              nx = Math.floor(self.lastscrollx - (self.speedx * (1 - self.demulxy)));
              self.lastscrollx = nx;
              if ((nx < 0) || (nx > pagew)) df = 0.10;
            }
  
            if (self.speedy) {
              ny = Math.floor(self.lastscrolly - (self.speedy * (1 - self.demulxy)));
              self.lastscrolly = ny;
              if ((ny < 0) || (ny > pageh)) df = 0.10;
            }
  
            self.demulxy = Math.min(1, self.demulxy + df);
  
            self.nc.synched("domomentum2d", function () {
  
              if (self.speedx) {
                var scx = self.nc.getScrollLeft();
                //              if (scx != self.chkx) self.stop();
                self.chkx = nx;
                self.nc.setScrollLeft(nx);
              }
  
              if (self.speedy) {
                var scy = self.nc.getScrollTop();
                //              if (scy != self.chky) self.stop();
                self.chky = ny;
                self.nc.setScrollTop(ny);
              }
  
              if (!self.timer) {
                self.nc.hideCursor();
                self.doSnapy(nx, ny);
              }
  
            });
  
            if (self.demulxy < 1) {
              self.timer = setTimeout(onscroll, tm);
            } else {
              self.stop();
              self.nc.hideCursor();
              self.doSnapy(nx, ny);
            }
          };
  
          onscroll();
  
        } else {
          self.doSnapy(self.nc.getScrollLeft(), self.nc.getScrollTop());
        }
  
      };
  
    };
  
  
    // override jQuery scrollTop
    var _scrollTop = jQuery.fn.scrollTop; // preserve original function
  
    // jQuery.cssHooks.pageYOffset = {
    //   get: function (elem, computed, extra) {
    //     var nice = $.data(elem, '__nicescroll') || false;
    //     return (nice && nice.ishwscroll) ? nice.getScrollTop() : _scrollTop.call(elem);
    //   },
    //   set: function (elem, value) {
    //     var nice = $.data(elem, '__nicescroll') || false;
    //     (nice && nice.ishwscroll) ? nice.setScrollTop(parseInt(value)) : _scrollTop.call(elem, value);
    //     return this;
    //   }
    // };
  
    jQuery.fn.scrollTop = function (value) {
      if (value === undefined) {
        var nice = (this[0]) ? $.data(this[0], '__nicescroll') || false : false;
        return (nice && nice.ishwscroll) ? nice.getScrollTop() : _scrollTop.call(this);
      } else {
        return this.each(function () {
          var nice = $.data(this, '__nicescroll') || false;
          (nice && nice.ishwscroll) ? nice.setScrollTop(parseInt(value)) : _scrollTop.call($(this), value);
        });
      }
    };
  
    // override jQuery scrollLeft
    var _scrollLeft = jQuery.fn.scrollLeft; // preserve original function
  
    // $.cssHooks.pageXOffset = {
    //   get: function (elem, computed, extra) {
    //     var nice = $.data(elem, '__nicescroll') || false;
    //     return (nice && nice.ishwscroll) ? nice.getScrollLeft() : _scrollLeft.call(elem);
    //   },
    //   set: function (elem, value) {
    //     var nice = $.data(elem, '__nicescroll') || false;
    //     (nice && nice.ishwscroll) ? nice.setScrollLeft(parseInt(value)) : _scrollLeft.call(elem, value);
    //     return this;
    //   }
    // };
  
    jQuery.fn.scrollLeft = function (value) {
      if (value === undefined) {
        var nice = (this[0]) ? $.data(this[0], '__nicescroll') || false : false;
        return (nice && nice.ishwscroll) ? nice.getScrollLeft() : _scrollLeft.call(this);
      } else {
        return this.each(function () {
          var nice = $.data(this, '__nicescroll') || false;
          (nice && nice.ishwscroll) ? nice.setScrollLeft(parseInt(value)) : _scrollLeft.call($(this), value);
        });
      }
    };
  
    var NiceScrollArray = function (doms) {
      var self = this;
      this.length = 0;
      this.name = "nicescrollarray";
  
      this.each = function (fn) {
        $.each(self, fn);
        return self;
      };
  
      this.push = function (nice) {
        self[self.length] = nice;
        self.length++;
      };
  
      this.eq = function (idx) {
        return self[idx];
      };
  
      if (doms) {
        for (var a = 0; a < doms.length; a++) {
          var nice = $.data(doms[a], '__nicescroll') || false;
          if (nice) {
            this[this.length] = nice;
            this.length++;
          }
        }
      }
  
      return this;
    };
  
    function mplex(el, lst, fn) {
      for (var a = 0, l = lst.length; a < l; a++) fn(el, lst[a]);
    }
    mplex(
      NiceScrollArray.prototype, ['show', 'hide', 'toggle', 'onResize', 'resize', 'remove', 'stop', 'doScrollPos'],
      function (e, n) {
        e[n] = function () {
          var args = arguments;
          return this.each(function () {
            this[n].apply(this, args);
          });
        };
      }
    );
  
    jQuery.fn.getNiceScroll = function (index) {
      if (index === undefined) {
        return new NiceScrollArray(this);
      } else {
        return this[index] && $.data(this[index], '__nicescroll') || false;
      }
    };
  
    var pseudos = jQuery.expr.pseudos || jQuery.expr[':'];  // jQuery 3 migration
    pseudos.nicescroll = function (a) {
      return $.data(a, '__nicescroll') !== undefined;
    };
  
    $.fn.niceScroll = function (wrapper, _opt) {
      if (_opt === undefined && typeof wrapper == "object" && !("jquery" in wrapper)) {
        _opt = wrapper;
        wrapper = false;
      }
  
      var ret = new NiceScrollArray();
  
      this.each(function () {
        var $this = $(this);
  
        var opt = $.extend({}, _opt); // cloning
  
        if (wrapper || false) {
          var wrp = $(wrapper);
          opt.doc = (wrp.length > 1) ? $(wrapper, $this) : wrp;
          opt.win = $this;
        }
        var docundef = !("doc" in opt);
        if (!docundef && !("win" in opt)) opt.win = $this;
  
        var nice = $this.data('__nicescroll') || false;
        if (!nice) {
          opt.doc = opt.doc || $this;
          nice = new NiceScrollClass(opt, $this);
          $this.data('__nicescroll', nice);
        }
        ret.push(nice);
      });
  
      return (ret.length === 1) ? ret[0] : ret;
    };
  
    _win.NiceScroll = {
      getjQuery: function () {
        return jQuery;
      }
    };
  
    if (!$.nicescroll) {
      $.nicescroll = new NiceScrollArray();
      $.nicescroll.options = _globaloptions;
    }
  
  }));
